A gruesome story penned on a centuries-old scroll makes its way across Europe; a stone-age mummy emerges from the icy alps; an ancient city in Afghanistan is reduced to rubble.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Young adults accompany their parents back to their country of origin, where they relive the sacrifice, struggle and dramatic circumstances that led to their parents' emigration.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

Jay scrounges for games in Toronto and Mississauga and battles a downward swing in momentum.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Young adults accompany their parents back to their country of origin, where they relive the sacrifice, struggle and dramatic circumstances that led to their parents' emigration.

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

Billions of years ago, the first sign of life emerged on Earth; how exactly did this miraculous event unfold? As we probe the past, astronomers turn their telescopes to exoplanets to uncover vital clues about our own origins on planet Earth.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

Jay scrounges for games in Toronto and Mississauga and battles a downward swing in momentum.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

Jamila is Kenyan-Canadian and feels very disconnected from her culture; recently reunited with her dad Abdul after years apart, she travels to Kenya with him to uncover her Kenyan identity and strengthen their relationship.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

This documentary will examine how toxic elements of digital environment are dramatically transforming society in negative ways, just as the prophetic, popular futurist Marshall McLuhan predicted 60 years ago.

A Kazakh farmer discovers ancient burial sites related to the legend of the Amazon women warriors; a military structure in the Italian Alps; a shrine in the Indian Himalayas; a fossilized species.

At the sacrificial altar El Castillo, where thousands met their death, researchers find new evidence that could shed light on the Maya; a sacred well at Chichen Itza where thousands were deposited and ceramic pieces at Khonkho Wankane mortuary.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Jamila is Kenyan-Canadian and feels very disconnected from her culture; recently reunited with her dad Abdul after years apart, she travels to Kenya with him to uncover her Kenyan identity and strengthen their relationship.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Knowing little of her Japanese heritage, Lacey travels to Japan with her father to reconnect with the sights, sounds, and flavors of his childhood.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

For thousands of years, the pharaohs have adhered to the same traditions and rituals; one pharaoh steps in to change the rules of the game; what happens when a king challenges the very institutions that granted him power?

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

Each species has undergone eons of beta testing, animal vs. animal, animal vs. element and even animal vs. human; take a peek under the hood of these critters; what does it take to make them top performers?

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

The Hope diamond makes its way across the world; William Shakespeare's remains are at the center of centuries-old rumors; a god enacts consequences on those who dare to steal from the island he shaped centuries ago.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Dateline 1903, 4:10am. One of the largest and deadliest rock slides in Canadian history nearly buried the mining town including its local bank. In the years after, a legend of 500,000 lost banknotes floated around.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

This documentary will examine how toxic elements of digital environment are dramatically transforming society in negative ways, just as the prophetic, popular futurist Marshall McLuhan predicted 60 years ago.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

The spirit of exploration drives scientists into extreme environments; biochemist Peng Jiamu vanishes in the Lop Desert; navigator Jean-François La Pérouse faces treacherous seas while seeking the Northwest Passage.

Twins Ashley and Anthony grapple with the unresolved pain of their mother's decision to leave her homeland of Latvia.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

A woman is hit by a truck while crossing the street, plunging her into an out-of-body experience that profoundly changes her life; a medical mishap causes a journey into a realm of light for a quadriplegic man.

From the Hindenburg disaster, to the Iceland Eruption, Chornobyl, the Dust Bowl Drought, and the Cascadia Earthquake; the science and engineering behind these events, and the lessons learned.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

On the 250th anniversary of the Declaration of Independence, forgotten patriots of the American Revolutionary War tell their stories for the first time.

Knowing little of her Japanese heritage, Lacey travels to Japan with her father to reconnect with the sights, sounds, and flavors of his childhood.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Journeying through a labyrinth of microchips and motors to see how some of the world's first combustion engines on wheels transformed into slick and sophisticated self-driving vehicles.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.

California is home to many sightings of unidentified flying objects; the state's size contributes to explained and unexplained sightings.

Under Saddam Hussein's rule, fearsome purges, mass genocides, political executions, and invasions of neighboring powers become the norm; early murderous tendencies set the stage for years of ruthless resolve.

Jordyn and Johnny are in Moose Jaw, Saskatchewan, home to tunnels that sprawl underneath most of the city's downtown. While much of the system has been converted into a tourist attraction, some residue of the spirit realm still clings onto the space.

The search for the lost Viking continues, with the team venturing further into Minnesota lore as residents offer up theories of what happened to the lost Viking. The team is led to multiple sites where remnants of the lost Viking voyage may reside.

Twins Ashley and Anthony grapple with the unresolved pain of their mother's decision to leave her homeland of Latvia.

A Russian radio station has broadcast a signal nonstop since the Cold War, and no one knows why; experts use hi-tech methods to investigate what it is and what might happen if it ever stops.

Tiny cosmic rays travel through the universe, constantly bombarding Earth with a stream of extreme radiation; scientists study these high-energy particles to understand their galactic origins.