Archaeologists discover an unusual man-made rock formation in the remote Altai Mountains of Russia, and conducting a further excavation, they unearth an ancient log cabin and the mummified remains of two bodies buried deep in the frozen permafrost.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

All aboard an exciting high-speed journey through time witnessing the birth and evolution of one of the most important forms of transportation ever invented, the train.

To ensure body and spirit remain everlasting, the ancient Egyptians developed elaborate rituals, massive tombs, and even magic incantations to entomb their remains; when laying bodies to rest, the Romans were all about processional pomp and grandeur.

Nature is powerful and can snuff out life in an instant, but for three intrepid adventurers, nature holds mysteries just waiting to be discovered.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Far from the front lines, Nazi scientists were tasked with creating the perfect Aryan soldier for the Thousand Year Reich.

When the human remains of a woman are found near Vejle, Denmark, an archaeologist begins to tell a fantastic story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Two of the deadliest.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

A traumatic, post-birth surgery goes fatally wrong for a new mother. Then and a mission of mercy puts a doctor at death's door. Separate near death experiences leave each woman with new insights into themselves and world around them.

The grim reaper's coming for us, and nobody knows what's on the other side. Or do they? In each hour-long episode we follow the true story of a real person who crossed over to the other side. And then somehow, through some miracle, managed to return.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Far from the front lines, Nazi scientists were tasked with creating the perfect Aryan soldier for the Thousand Year Reich.

When the human remains of a woman are found near Vejle, Denmark, an archaeologist begins to tell a fantastic story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Two of the deadliest.

A sinister fortress; a place of blessing for Joan of Arc; a stronghold built of stone.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

A traumatic, post-birth surgery goes fatally wrong for a new mother. Then and a mission of mercy puts a doctor at death's door. Separate near death experiences leave each woman with new insights into themselves and world around them.

The grim reaper's coming for us, and nobody knows what's on the other side. Or do they? In each hour-long episode we follow the true story of a real person who crossed over to the other side. And then somehow, through some miracle, managed to return.

Between September 1944 and February 1945, US troops fought their longest battle in history, one so punishing soldiers called it.

Far from the front lines, Nazi scientists were tasked with creating the perfect Aryan soldier for the Thousand Year Reich.

When the human remains of a woman are found near Vejle, Denmark, an archaeologist begins to tell a fantastic story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Two of the deadliest.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

A traumatic, post-birth surgery goes fatally wrong for a new mother. Then and a mission of mercy puts a doctor at death's door. Separate near death experiences leave each woman with new insights into themselves and world around them.

The grim reaper's coming for us, and nobody knows what's on the other side. Or do they? In each hour-long episode we follow the true story of a real person who crossed over to the other side. And then somehow, through some miracle, managed to return.

A sinister fortress; a place of blessing for Joan of Arc; a stronghold built of stone.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Far from the front lines, Nazi scientists were tasked with creating the perfect Aryan soldier for the Thousand Year Reich.

When the human remains of a woman are found near Vejle, Denmark, an archaeologist begins to tell a fantastic story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

Two of the deadliest.

A traumatic, post-birth surgery goes fatally wrong for a new mother. Then and a mission of mercy puts a doctor at death's door. Separate near death experiences leave each woman with new insights into themselves and world around them.

The grim reaper's coming for us, and nobody knows what's on the other side. Or do they? In each hour-long episode we follow the true story of a real person who crossed over to the other side. And then somehow, through some miracle, managed to return.

From the face to the base and the people who make them, discussing pairs.

Speed is a major competitive strategy; while humans measure and focus on how to achieve it in greater quantities, Earth's creatures have adapted and evolved over long periods to achieve acceleration.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Long before the declaration of war, the world wanted the Fuhrer dead; in Germany, fellow politicians lodge their dissent after the horrific Night of the Long Knives; among them, a plan starts to take shape.

Discussing hygiene when addressing that odor, cleaning the pearly whites and sitting on the throne.

Putting on one's face, striking a pose and strutting one's stuff.

Hinduism is a pluralistic and syncretic belief system that features thousands of divinities that are all aspects of a singular divine; exploring how Hinduism's embrace of diversity and spirituality continues to shape India and the world.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Speed is a major competitive strategy; while humans measure and focus on how to achieve it in greater quantities, Earth's creatures have adapted and evolved over long periods to achieve acceleration.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Long before the declaration of war, the world wanted the Fuhrer dead; in Germany, fellow politicians lodge their dissent after the horrific Night of the Long Knives; among them, a plan starts to take shape.

Hinduism is a pluralistic and syncretic belief system that features thousands of divinities that are all aspects of a singular divine; exploring how Hinduism's embrace of diversity and spirituality continues to shape India and the world.

Putting on one's face, striking a pose and strutting one's stuff.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Speed is a major competitive strategy; while humans measure and focus on how to achieve it in greater quantities, Earth's creatures have adapted and evolved over long periods to achieve acceleration.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Discussing hygiene when addressing that odor, cleaning the pearly whites and sitting on the throne.

Putting on one's face, striking a pose and strutting one's stuff.

Hinduism is a pluralistic and syncretic belief system that features thousands of divinities that are all aspects of a singular divine; exploring how Hinduism's embrace of diversity and spirituality continues to shape India and the world.

Long before the declaration of war, the world wanted the Fuhrer dead; in Germany, fellow politicians lodge their dissent after the horrific Night of the Long Knives; among them, a plan starts to take shape.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Speed is a major competitive strategy; while humans measure and focus on how to achieve it in greater quantities, Earth's creatures have adapted and evolved over long periods to achieve acceleration.

Discussing hygiene when addressing that odor, cleaning the pearly whites and sitting on the throne.

Putting on one's face, striking a pose and strutting one's stuff.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Long before the declaration of war, the world wanted the Fuhrer dead; in Germany, fellow politicians lodge their dissent after the horrific Night of the Long Knives; among them, a plan starts to take shape.

Hinduism is a pluralistic and syncretic belief system that features thousands of divinities that are all aspects of a singular divine; exploring how Hinduism's embrace of diversity and spirituality continues to shape India and the world.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

A German village is shocked when a body is found mutilated beyond recognition; when archaeologists investigate further, they find evidence of human sacrifice.

A Spanish badminton player uses technology in an effort to accomplish something that nobody in the sport has ever done before; an American man is wrongfully convicted of a crime based on an inaccurate lie detector test.

Some discoveries lie in wait for those brave enough to venture out; from hidden cities in the jungle to dinosaur fossils and seeds in far-flung locales, the prize goes to those willing to take the risk.

Chris wants to know who his real father is; Matt wants to know if his girlfriend is cheating on him.

Discussing travel by air, travel by sea and travel by land.

A fairytale chateau provides an unlikely place of refuge; a grand fort in India.

Archaeologists discover human remains during an excavation of a fifth-century fort on the Swedish island of Oland; after further investigation, experts unearth 26 skeletons and uncover the site of an ancient massacre.

A German village is shocked when a body is found mutilated beyond recognition; when archaeologists investigate further, they find evidence of human sacrifice.

A Spanish badminton player uses technology in an effort to accomplish something that nobody in the sport has ever done before; an American man is wrongfully convicted of a crime based on an inaccurate lie detector test.

Some discoveries lie in wait for those brave enough to venture out; from hidden cities in the jungle to dinosaur fossils and seeds in far-flung locales, the prize goes to those willing to take the risk.

Chris wants to know who his real father is; Matt wants to know if his girlfriend is cheating on him.

A fairytale chateau provides an unlikely place of refuge; a grand fort in India.

Discussing travel by air, travel by sea and travel by land.

In April 1981, the first Space Shuttle launched, ushering in a new era of space exploration; unlocking the secrets of the cosmos requires intricate machines, and what's under their hood is nothing short of rocket science.

Archaeologists discover human remains during an excavation of a fifth-century fort on the Swedish island of Oland; after further investigation, experts unearth 26 skeletons and uncover the site of an ancient massacre.

A German village is shocked when a body is found mutilated beyond recognition; when archaeologists investigate further, they find evidence of human sacrifice.

A Spanish badminton player uses technology in an effort to accomplish something that nobody in the sport has ever done before; an American man is wrongfully convicted of a crime based on an inaccurate lie detector test.

Some discoveries lie in wait for those brave enough to venture out; from hidden cities in the jungle to dinosaur fossils and seeds in far-flung locales, the prize goes to those willing to take the risk.

A military man is critically injured and dies, he is greeted by a figure that persuades him to return to his body. Then, a woman born with sensitivities to other dimensions, dies in a car crash and must use her intuition to navigate the afterlife.

A fairytale chateau provides an unlikely place of refuge; a grand fort in India.

Archaeologists discover human remains during an excavation of a fifth-century fort on the Swedish island of Oland; after further investigation, experts unearth 26 skeletons and uncover the site of an ancient massacre.

Discussing travel by air, travel by sea and travel by land.

A military man is critically injured and dies, he is greeted by a figure that persuades him to return to his body. Then, a woman born with sensitivities to other dimensions, dies in a car crash and must use her intuition to navigate the afterlife.

A German village is shocked when a body is found mutilated beyond recognition; when archaeologists investigate further, they find evidence of human sacrifice.

Some discoveries lie in wait for those brave enough to venture out; from hidden cities in the jungle to dinosaur fossils and seeds in far-flung locales, the prize goes to those willing to take the risk.

A Spanish badminton player uses technology in an effort to accomplish something that nobody in the sport has ever done before; an American man is wrongfully convicted of a crime based on an inaccurate lie detector test.

A fairytale chateau provides an unlikely place of refuge; a grand fort in India.

Archaeologists discover human remains during an excavation of a fifth-century fort on the Swedish island of Oland; after further investigation, experts unearth 26 skeletons and uncover the site of an ancient massacre.

A military man is critically injured and dies, he is greeted by a figure that persuades him to return to his body. Then, a woman born with sensitivities to other dimensions, dies in a car crash and must use her intuition to navigate the afterlife.

Discussing travel by air, travel by sea and travel by land.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Looking at shaving, wine, and condoms.

Chris wants to know who his real father is; Matt wants to know if his girlfriend is cheating on him.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

Looking at shaving, wine, and condoms.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Chris wants to know who his real father is; Matt wants to know if his girlfriend is cheating on him.

Looking at shaving, wine, and condoms.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

Chris wants to know who his real father is; Matt wants to know if his girlfriend is cheating on him.

How certain vices became so popular.

Some of the worst catastrophes in history, from the Liverpool Blitz of 1941 to the cataclysmic Banqiao Dam collapse and the devastating Haitian earthquake.

Millionaire Donald Bain loved his private hunting lodge on the shores of Lake Manitoba, so much so he'd greet strangers with a shotgun and turned away Hollywood royalty.

Young Krystal's terrible aches and pains are diagnosed as simple growing pains, but the discomfort continues and spreads throughout her body;. Rebecca is eventually diagnosed with anxiety and depression, but her symptoms are much more than that.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

A mysterious well filled with bones reveals a strange practice in ancient Persia; archaeologists digging in Mongolia uncover a 2000-year-old textile that holds the key to the mystery of an elixir; in Sichuan, China, hanging coffins are discovered.

PT Barnum makes millions off the backs of the defenseless while, one by one, his properties go up in flames; a string of eager prospectors try their luck in uncharted territory; a group of 200 men and women sacrifice themselves to a massive pyre.

In April 1981, the first Space Shuttle launched, ushering in a new era of space exploration; unlocking the secrets of the cosmos requires intricate machines, and what's under their hood is nothing short of rocket science.