In 1945, a group of soldiers discovers Amelia Earhart's long-lost airplane in Papua, New Guinea; a team of experts will locate the plane using the soldiers' testimony and an old patrol map.

Don Wildman tracks the origins of the mob in the United States, meeting individuals who knew some of the mob's most infamous members while delving into some of its greatest unsolved mysteries.

Venice was once a fearsome superpower home to secrets, wealth, and treachery; today, scientists use pioneering acoustic imaging technology to discover the city's ancient foundations and reveal how it's still standing.

The sprawling city of Persepolis was capital to the first imperial civilization that conquered most of the known ancient world; experts use advanced forensic archaeology to reveal the secrets behind Persia's mysterious and dominating metropolis.

Archaeologists decode cryptic inscriptions and use innovative geophysical analysis to reveal the secrets of Mount Nemrut in southeastern Turkey.

The legends of robot combat put it all on the line for a shot at the 2018 World Championship.

World-class robots Bronco and Bombshell go head-to-head as the elite group of robots compete for the title of 2018 BattleBots World Champion.

Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past; a flying saucer is photographed from the Apollo.

NASA's Juno spacecraft is part of a cutting-edge mission to explore the mysteries of Jupiter; as this mighty probe is pummeled with deadly radiation, it gathers new data that could change everything we know about the solar system's biggest planet.

NASA plans to send humans to Mars within just 15 years, but to reach this next frontier of space exploration, experts must discover new technology and cutting-edge science that protects astronauts from the Red Planet's deadliest killers.

The legend of the lost city of Atlantis is one of history's greatest mysteries, and cutting-edge technology could bring it back to life; experts use modern engineering to reveal if it's possible to build a megacity underwater.

Machu Picchu is one of the greatest landmarks of world architecture, yet the purpose of its construction and how it was built still remains a mystery; experts use cutting-edge engineering to reveal what it would take to rebuild this legendary city.

Experts use cutting-edge tech to discover if a modern vessel of equal opulence to the Titanic could be successfully built for the sea today.

Architects, historians and engineers explore if modern day innovations could be applied to re-create iconic building projects, or if fundamental construction techniques have been lost to time.

For centuries, concert halls have been precisely designed and engineered to shape the best possible sound for acoustic performance; now, experts use state-of-the-art science to discover how the next generation of concert halls could be constructed.

Stonehenge is an astonishing achievement of ancient construction that continues to baffle engineers thousands of years later; now, experts use the latest science to discover the logistics behind erecting another legendary monument today.

The Parthenon is the crowning jewel of ancient Greek architecture and it was engineered according to a mysterious mathematical formula; expert builders examine the secrets of its design and investigate if modern-day methods could rebuilt it.

Strange satellite images taken above the Nile Valley could point investigators to long-lost relics buried in an unexplored city of the dead; what they find could reveal new secrets of Kush, a once-mighty kingdom of untold gold and treasure.

When satellites spot anomalies in the unexplored Amazonian jungle, experts wonder if they've discovered relics of a lost civilization; an on-the-ground investigation reveals a dark truth that's more sinister than ever imagined.

New satellite evidence shows a mysterious spiral structure from space, and experts think it could be the lost city of Atlantis; using cutting-edge technology, they investigate the truth behind this odd phenomenon.

When instruments on the International Space Station suddenly malfunction every time it passes over a mysterious site in the Atlantic Ocean, experts investigate if this eerie behavior is more than just a tech glitch, but a prophecy of global doomsday.

Mysterious circles of reindeer appear in the remote tundra of Sweden; experts investigate if this strange event could be evidence of fatal aftershocks from the Chernobyl nuclear disaster.

When the people of a thriving Midwestern town suddenly disappear, they leave behind an eerie ghost town with a dark secret; experts use cutting-edge tech to investigate if the mysterious exodus could be evidence of a freak natural disaster.

When instruments on the International Space Station suddenly malfunction every time it passes over a mysterious site in the Atlantic Ocean, experts investigate if this eerie behavior is more than just a tech glitch, but a prophecy of global doomsday.

Mysterious circles of reindeer appear in the remote tundra of Sweden; experts investigate if this strange event could be evidence of fatal aftershocks from the Chernobyl nuclear disaster.

When the people of a thriving Midwestern town suddenly disappear, they leave behind an eerie ghost town with a dark secret; experts use cutting-edge tech to investigate if the mysterious exodus could be evidence of a freak natural disaster.

New satellite evidence shows a mysterious spiral structure from space, and experts think it could be the lost city of Atlantis; using cutting-edge technology, they investigate the truth behind this odd phenomenon.

Stonehenge is an astonishing achievement of ancient construction that continues to baffle engineers thousands of years later; now, experts use the latest science to discover the logistics behind erecting another legendary monument today.

The Parthenon is the crowning jewel of ancient Greek architecture and it was engineered according to a mysterious mathematical formula; expert builders examine the secrets of its design and investigate if modern-day methods could rebuilt it.

Fan favorites Yeti and Witch Doctor face off in a world-class fight as top competitors battle to earn their spots in the postseason tournament.

Rookie bot End Game and former BattleBots champ Bite Force duke it out in an action-packed night of battles.

Life may have been found on Mars; mysterious Moon Pigeons.

We don't yet know where the edge of the universe is or what happens there; but thanks to cutting-edge technology and new discoveries, experts might finally reveal the secrets of the phenomena.

The universe's stars are dying off faster than new ones are born; using the latest technology, experts investigate the secrets of the last stars of the cosmos and what this stellar apocalypse means for life on Earth.

The shattered skull of a 19th century railway worker is now one of the most astonishing objects in the history of medical science; experts explore this traumatic injury to reveal how it changed the field of neuroscience.

Containing intricately carved concentric circles, the Towie Ball is one of the finest Neolithic stoneworks ever discovered; using cutting-edge imaging technology, experts investigate the purpose behind this 5,000-year-old black stone mystery.

A minuscule metal sphere containing two microscopic holes could be the smallest murder weapon in history; experts explore how this tiny object is linked to one of the most bizarre true crime cases of the 20th century.

Investigating whether a machine can read personalities; an ancient golden mask painted with human blood; a cursed chicken pot.

A museum in South London contains a disturbing tattered hat made of brown felt and decorated with more than 80 human teeth; using the latest imaging technology, experts investigate to uncover the macabre origins of this mysterious Victorian-era cap.

Discovered in the ruins of the ancient city of Ur, a mysterious wooden box adorned with an elaborate mosaic continues to mystify archaeologists today; experts explore the meaning behind its intricate and enigmatic images.

In 1953, a team of archaeologists uncover a bizarre, plastered human skull in the ancient city of Jericho; experts investigate the mysterious purpose and identity behind this 9,000-year-old clay-covered artifact.

An Infantryman encounters an otherworldly presence on a training mission.

An unknown presence pulls an Armed Forces officer into a living nightmare.

U.N. Peacekeeper develops a mysterious power to fight off a deadly foe.

An intelligence analyst on a secret mission makes an unearthly discovery.

A Russian Infantryman fights an unknown presence in a Chechnyan forest.

An unearthly presence at a nuclear launch site in Cyprus visits a UN peacekeeper and helps him fight off a deadly enemy.

An intelligence analyst on a secret mission makes an unearthly discovery.

A Russian Infantryman fights an unknown presence in a Chechnyan forest.

An unearthly presence at a nuclear launch site in Cyprus visits a UN peacekeeper and helps him fight off a deadly enemy.

U.N. Peacekeeper develops a mysterious power to fight off a deadly foe.

Discovered in the ruins of the ancient city of Ur, a mysterious wooden box adorned with an elaborate mosaic continues to mystify archaeologists today; experts explore the meaning behind its intricate and enigmatic images.

In 1953, a team of archaeologists uncover a bizarre, plastered human skull in the ancient city of Jericho; experts investigate the mysterious purpose and identity behind this 9,000-year-old clay-covered artifact.

Legends Hypershock and Biteforce face off in an epic showdown, while up-and-comers try to prove they have what it takes to be crowned 2018 BattleBots World Champion.

BattleBots royalty Bronco and Lock-Jaw fight to the death as the competition for 2018 BattleBots World Champion gets fierce.

A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon; why there are blueberries on Mars.

The center of the Milky Way is home to strange and deadly phenomena that is difficult to understand; with the help of science, experts reveal how the black hole, the galaxy's core, shapes life on Earth.

Time travel may be more possible now than ever imagined, and today, cutting-edge technology and the latest research into black holes and wormholes is helping experts get much closer to discovering how to travel through time.

When a new bridge suddenly collapses in Miami, several die in a horrifying calamity; experts use the latest science to investigate what went wrong and how an innovative bridge-building technique could be to blame.

Montreal's Olympic Stadium is an ambitious engineering project with a striking space-age design, but it's distinctive roof has caused more than $1 billion in cost overruns; experts reveal what went wrong and how cutting-edge science can fix it.

In 2006, a fatal collapse in one of Boston's tunnels put an ambitious project in doubt; experts reveal what caused this engineering disaster and how it was fixed.

New science reveals the inside story of the Apollo 13 disaster, and using the latest evidence, experts reveal what really went wrong and how NASA saved the lives of the three astronauts stranded in space in a life-or-death race against the clock.

When a dam breaks during routine maintenance, engineers fear a catastrophic flood; experts use the latest science to investigate what went wrong and how a simple miscalculation could be to blame.

When Hurricane Harvey hits Houston, the city is overwhelmed by four feet of rain in four days, causing catastrophic flooding and billions of dollars in damage; experts use cutting-edge technology to discover what went wrong and how it can be fixed.

Planes and trains have made the world smaller, but when things go wrong, hundreds of lives can be lost in an instant.

As technology advances, manmade accidents have become as destructive as some natural disasters; a look at recent catastrophes.

Tornadoes are violent, rotating columns of air that can level buildings, their unpredictability makes them even more destructive; a look at how tornadoes form and if they can be stopped.

Earthquakes occur when tectonic plates suddenly shift and shock waves shake the Earth's surface; they occur along fault lines -- the most active being the Ring of Fire in the Pacific Ocean and the San Andreas Fault on the American West Coast.

Archive footage and cutting-edge CGI is used to explore global disasters, illustrating the full toll these events can take and giving an understanding on how and why they occur.

Volcanoes created more than 80% of our planet's surface, but explosive eruptions can be deadly; a journey under the earth to discover why volcanoes are so dangerous.

Hurricanes, typhoons and cyclones are all the same thing with different names, but what they also have in common is their destructive power.

Archive footage and cutting-edge CGI is used to explore global disasters, illustrating the full toll these events can take and giving an understanding on how and why they occur.

Volcanoes created more than 80% of our planet's surface, but explosive eruptions can be deadly; a journey under the earth to discover why volcanoes are so dangerous.

Hurricanes, typhoons and cyclones are all the same thing with different names, but what they also have in common is their destructive power.

Earthquakes occur when tectonic plates suddenly shift and shock waves shake the Earth's surface; they occur along fault lines -- the most active being the Ring of Fire in the Pacific Ocean and the San Andreas Fault on the American West Coast.

When Hurricane Harvey hits Houston, the city is overwhelmed by four feet of rain in four days, causing catastrophic flooding and billions of dollars in damage; experts use cutting-edge technology to discover what went wrong and how it can be fixed.

Planes and trains have made the world smaller, but when things go wrong, hundreds of lives can be lost in an instant.

Reigning champion Tombstone takes on the legendary Gigabyte as the battles heat up to take home the renowned BattleBots trophy.

Elite bots Icewave and Skorpios square off in an epic throw down, and the rest of the bots battle to secure their spots in the Sweet 16.

Spaceships powered by atomic bombs; artificial rings encircle an entire star; Neil Armstrong's transmission feed cuts off when he spots strange lights on the moon; how can lightning talk to itself.

Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind the rules of the universe.

Earth's journey through the universe is a perilous one; new discoveries reveal that the planet is heading toward a mysterious area of the cosmos.

Galaxies are locked in continual combat across the universe, and the Milky Way will face its biggest opponent ever, the Andromeda Galaxy, in a titanic and deadly struggle that could create a new and unrecognizable super galaxy.

Some believe the fire on Apollo One that killed three astronauts was a top-secret cover-up, and a team of experts investigate if this disaster was a tragic accident or part of a conspiracy to fake the moon landing.

A team of experts investigates if there was a conspiracy to fake the moon landing, and uncovers a secret report on hundreds of Nazis involved in the Apollo space program.

Confidential CIA files reveal a top-secret war for space between the US and the Soviets, and a team of experts investigate if new discoveries about American espionage during the Apollo program provide evidence of a conspiracy.

Apollo 11's lunar module nearly killed Neil Armstrong during training, and some believe this close-call could explain a conspiracy to fake the moon landing; investigating if dangers that the Apollo 11 crew faced were motive for a cover-up.

The NASA tapes that recorded the Apollo 11 moon landing are missing, and some believe their disappearance is part of a cover-up to hide the truth; experts use cutting-edge tech to hunt for this lost evidence and shed light on a possible conspiracy.

Some believe that the moon's waving American flag is the smoking gun that NASA faked the moon landing, and as a team of experts investigate this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

A town in Oklahoma is transformed by the discovery of oil fields; a former school in Cambodia becomes the site of crimes against humanity; a remote radar facility in Latvia symbolizes the threat of nuclear warfare that characterized the Cold War.

An old compound in Texas bears the scars of a violent revolution; a secret facility outside Berlin is used by a dictator to escape justice; the estate of an aristocrat becomes a stronghold for the IRA.

A slice of the Miami suburbs stands out for its style and history; a hotel in Lebanon carries the scars of a civil war; a pirate radio station gets a mixed reception.

A fantasy land lies in the heart of Alabama; a place of refuge in Ireland becomes a house of horrors; a South Korean city is scarred by a violent crackdown; traces of a brutal industry remain along the arid Namibian coast.

Desert bunkers in Tunisia block Allied victory in Africa; the pride of one Alabama community is born out of a harsh reality; a Lebanese complex is rocked by a massive explosion; the remains of an elite institution still stand in Greece.

A military base in Panama becomes a battleground between American forces and a drug-running tyrant; a life cut short in Italy turns a utopian dream into a nightmare; a grisly Polish facility finds itself caught between two regimes.

A fantasy land lies in the heart of Alabama; a place of refuge in Ireland becomes a house of horrors; a South Korean city is scarred by a violent crackdown; traces of a brutal industry remain along the arid Namibian coast.

Desert bunkers in Tunisia block Allied victory in Africa; the pride of one Alabama community is born out of a harsh reality; a Lebanese complex is rocked by a massive explosion; the remains of an elite institution still stand in Greece.

A military base in Panama becomes a battleground between American forces and a drug-running tyrant; a life cut short in Italy turns a utopian dream into a nightmare; a grisly Polish facility finds itself caught between two regimes.

A slice of the Miami suburbs stands out for its style and history; a hotel in Lebanon carries the scars of a civil war; a pirate radio station gets a mixed reception.

The NASA tapes that recorded the Apollo 11 moon landing are missing, and some believe their disappearance is part of a cover-up to hide the truth; experts use cutting-edge tech to hunt for this lost evidence and shed light on a possible conspiracy.

Some believe that the moon's waving American flag is the smoking gun that NASA faked the moon landing, and as a team of experts investigate this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

A brutal match-up between Icewave and Yeti ignites the Battlebox, while the best bots in the world flex their gears.

Undefeated bots Bronco and Duck! duke it out in the battlebox as the race to become BattleBots World Champion heats up.

A piece of the sun seems to have vanished; the Hubble spots an unidentified object traveling faster than light.

If a massive asteroid collides with Earth, it could end life on the planet as one knows it; new discoveries reveal just how close civilization is to apocalypse and what it would take for the world's leading space agencies to stop it.

Spacetime is the secret structure that controls our universe, and this strange four-dimensional substance controls time, light, and energy; it will also determine how our universe will end.

A frozen lake deep in the Himalayas melts once a year to expose hundreds of human bones and a centuries-old mystery of astonishing carnage; leaving experts to speculate if it was a single catastrophic event or something much more sinister.

After a 2,500-year-old mummy is discovered in Siberia, locals report strange, cataclysmic events that point to an ancient curse; using cutting-edge archaeology, experts reveal who this person was and if they've unleashed something sinister.

Experts make a chilling new discovery when they unearth a 30,000-year-old zombie virus from an icy grave; if this ancient disease is successfully resuscitated back to life, it could cause a catastrophic global calamity.

When strange towers of ice are found growing in a barren, water-starved desert, experts speculate why these structures have uncanny similarities to extraterrestrial formations recently discovered on Pluto's alien landscape.

Three graves are discovered on the frozen beach of an uninhabited Arctic island; the mummified corpses inside may answer a centuries-old mystery of an expedition that was literally consumed by the cannibalistic insanity of its mutinous crew.

A top-secret military base hidden deep in the ice beyond the Arctic Circle is one of the Cold War's most elaborate cover-ups; recently declassified documents reveal its deadly purpose; the threat it might still pose to all humankind.

Military search and rescue efforts in deadly arctic conditions rely on a specialized helicopter with unrivaled power and endurance, and special access reveals how it works; in the Alps, a monster snow blower keeps trains running in dangerous weather.

Tourists explore the far reaches of northern Canada and gain exclusive access to polar bears on custom-built rovers; the Twin Otter aircraft drops much-needed supplies to isolated villages.

The Yeti is a custom-made snow-eater that keeps a critical Alaskan airport open for business; experts reveal how cutting-edge engineering and the latest technology keep this machine running in the toughest conditions.

When melting ice threatens to flood a town, a 22-ton amphibious mega machine battles the elements to save the day; in the Arctic, the Canadian Air Force relies on a massive transport aircraft to deliver supplies and personnel to far-off places.

Experts use a cutting-edge, all-terrain engineering marvel to access a perilous job site covered in snow.

The world's only actual all-terrain vehicle is an arctic mega monster that can conquer land, snow and water; a machine that can climb mountains.

When melting ice threatens to flood a town, a 22-ton amphibious mega machine battles the elements to save the day; in the Arctic, the Canadian Air Force relies on a massive transport aircraft to deliver supplies and personnel to far-off places.

Experts use a cutting-edge, all-terrain engineering marvel to access a perilous job site covered in snow.

The world's only actual all-terrain vehicle is an arctic mega monster that can conquer land, snow and water; a machine that can climb mountains.

The Yeti is a custom-made snow-eater that keeps a critical Alaskan airport open for business; experts reveal how cutting-edge engineering and the latest technology keep this machine running in the toughest conditions.

Three graves are discovered on the frozen beach of an uninhabited Arctic island; the mummified corpses inside may answer a centuries-old mystery of an expedition that was literally consumed by the cannibalistic insanity of its mutinous crew.

A top-secret military base hidden deep in the ice beyond the Arctic Circle is one of the Cold War's most elaborate cover-ups; recently declassified documents reveal its deadly purpose; the threat it might still pose to all humankind.

The team joins forces, placing popular sayings under the microscope to determine whether it really is "impossible to polish a turd," possible to "hit the ground running" or advisable to "end with a bang.".

Adam and Jamie try to turn a conventional electric stun gun into a water-powered electric stun gun.

Famous baseball myths.

Adam and Jamie test how dangerous an exploding truck tire can be.

Western myths; airbags.

Jamie and Adam find out if ninjas can run on water, as they join a ninjutsu master and try their luck at aquatic agility.

Two "Pirates of the Caribbean" movie-inspired myths are put to the test along with the curse of the Sand Neck Tie.

Experts investigate clues revealing evidence of a long-lost civilization in the Amazon that built giant cities of untold treasures.

Archaeologists are finding hard proof of the prehistoric civilization that once thrived in the Amazon; with the help of cutting-edge technology, these new discoveries reveal how these long-lost people built an advanced society in the jungle.

New discoveries reveal the mystery of what happened to the ancient superpower that once thrived in the Amazon jungles and, using cutting-edge archaeological methods, finding the reasons why the civilization fell.

The horrifying remains of the Screaming Mummy have haunted archaeologists for decades, but experts uncover new evidence to reveal the treacherous conspiracy that led to the mummy's grisly end.

The mangled mummy of a pharaoh is a 3,000-year-old cold case that has brand-new leads; a team of experts in Egyptian archaeology and criminal forensics investigates fresh evidence to discover the truth behind the brutal death.

Cutting-edge science reveals new discoveries about the mutilated mummy of a young woman with a secret link to Tutankhamun; as experts use modern-day criminal forensics to follow fresh leads, the bloody trail leads straight to the Boy King.

A brand-new discovery inside a 3,000-year-old treasure chest may lead experts to the Egyptian pharaoh who was erased from history: a woman named Hatshepsut, who was one of the most controversial and successful pharaohs of all time.

Leading scientists and Egyptologists use state-of-the-art forensics to investigate the Niagara Falls mummy and search for its true identity; how a legendary ancient Egyptian pharaoh ended up on the other side of the world.

The mysterious mummy of Ramesses V reveals a shocking tale of bitter family rivalry, civil insurrection and a cause of death that ultimately pushed ancient Egypt to the edge of collapse.

The world's leading Egyptologists are on a quest to uncover the secrets of Howard Carter's history-making discovery of Tutankhamun's tomb on the 100th anniversary of its discovery.

The mysterious mummy of Ramesses V reveals a shocking tale of bitter family rivalry, civil insurrection and a cause of death that ultimately pushed ancient Egypt to the edge of collapse.

The world's leading Egyptologists are on a quest to uncover the secrets of Howard Carter's history-making discovery of Tutankhamun's tomb on the 100th anniversary of its discovery.

Leading scientists and Egyptologists use state-of-the-art forensics to investigate the Niagara Falls mummy and search for its true identity; how a legendary ancient Egyptian pharaoh ended up on the other side of the world.

The horrifying remains of the Screaming Mummy have haunted archaeologists for decades, but experts uncover new evidence to reveal the treacherous conspiracy that led to the mummy's grisly end.

The mangled mummy of a pharaoh is a 3,000-year-old cold case that has brand-new leads; a team of experts in Egyptian archaeology and criminal forensics investigates fresh evidence to discover the truth behind the brutal death.

The team puts four myths sent in by viewers to the test, including finding out whether drinking alcohol can help to avoid hypothermia.

Adam and Jamie test an Indiana Jones myth; Kari, Grant and Tori try to break out of prison.

Jamie, Adam and Kari apply science to the theory that the more they drink, the more attractive they find the opposite sex.

Toothpicks, acrylic bathtubs, helicopters and beer are put under the microscope to find out how they are made.

Hearing aids; 3-D puzzles; rubber mats; toilets. Host: Mark Tewksbury.

Host Mark Tewksbury puts copy paper, jeans, computers and plate glass under the microscope to see how each of them is made.

Learning how nails, staples, safety glasses, fabrics and bicycles are made.

The host sheds light on how cast-iron bathtubs, Hopi kachina dolls, mine-truck engines and memory cards are manufactured.

An insight into the manufacturing and production process for oil and encaustic paints, marine plywood and cycling shoes.

An insight into the manufacturing and production process for everyday items such as paper fans, walnut oil and copper.

Looking into the manufacturing and production process for gut strings, absinthe, belt buckles and lever locks.

Ice cream treats; wooden golf clubs; aircraft wings; car battery recycling.

Automotive fuel pumps; cricket bats; change machines; ductile iron pipe.

Wooden barrels; fire hydrants; automobile seats; cathode ray tubes.

Stainless steel; football helmets; resin figurines; laboratory glassware.

The ancient city of Abydos contains some of the oldest Egyptian tombs and a buried temple linked to a mysterious death cult; now, archaeologists use cutting-edge drone imaging to investigate long-hidden secrets behind the first pharaohs.

The clifftop ruins of Tintagel Castle are shrouded in a tumultuous history and believed to be the birthplace of King Arthur; experts use cutting-edge tech to unlock the secrets of this ancient structure and reveal the truth behind a legendary ruler.

The ancient city of Samarra contains a series of medieval structures that hold secrets to one of the world's greatest empires; archaeologists use pioneering technology to investigate its astonishing rise to power and reveal its monumental downfall.

A colossal stone temple on a remote Egyptian island mysteriously bears the names of the most famous leaders of the ancient world; now, experts use cutting-edge tech to investigate why pharaohs and emperors all built monuments at this enigmatic site.

The legendary metropolis of Xanadu and its fabled existence have mystified experts for centuries; archaeologists use cutting-edge aerial imaging to investigate new discoveries and reveal the truth behind this mythical lost city.

The downfall of the powerful Maya city of Palenque continues to mystify archaeologists today; now, investigators gain rare access to explore lost tombs to reveal the truth behind this legendary city and the mystery behind its enigmatic queens.

A team using the latest technology searches for clues as to what caused the Maya to abandon their cities in the ninth century.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these majestic structures to reveal the truth behind the ancient Roman world.

A team using the latest technology searches for clues as to what caused the Maya to abandon their cities in the ninth century.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these majestic structures to reveal the truth behind the ancient Roman world.

The downfall of the powerful Maya city of Palenque continues to mystify archaeologists today; now, investigators gain rare access to explore lost tombs to reveal the truth behind this legendary city and the mystery behind its enigmatic queens.

The clifftop ruins of Tintagel Castle are shrouded in a tumultuous history and believed to be the birthplace of King Arthur; experts use cutting-edge tech to unlock the secrets of this ancient structure and reveal the truth behind a legendary ruler.

The ancient city of Samarra contains a series of medieval structures that hold secrets to one of the world's greatest empires; archaeologists use pioneering technology to investigate its astonishing rise to power and reveal its monumental downfall.

Apollo 12 astronauts bring back something alive from the moon; NASA tracks an asteroid heading towards Earth but make an incredible discovery.

Cosmonauts are trapped in a capsule in a frozen lake; a NASA scientist investigates the Hindenburg; the full moon affects experiments.

Astronaut Leroy Chiao's spacewalk is interrupted by bright lights flying past; a flying saucer is photographed from the Apollo.

New astronomical research is beginning to reveal an invisible scaffold of dark matter known as the Cosmic Web, an intergalactic network that transformed the universe from a chaotic Big Bang into the structured beauty of the present day cosmos.

Cosmic rays capable of destroying human DNA are hurtling through outer space like subatomic bullets, causing space crews radiation damage.

Céline and Fabien Cousteau use cutting-edge tech to investigate one of the most credible UFO sightings in history, when a strange alien craft was spotted crashing into the ocean; what they discover might reveal evidence of extraterrestrial contact.

A dangerous stretch of water in the Mediterranean is the resting place of an infamous sunken ship, and using the latest tech, Céline and Fabien Cousteau investigate if it was deliberately attacked by spies on a top-secret mission.

Céline and Fabien Cousteau use cutting-edge tech to hunt for a long-lost shipwreck in the Bermuda Triangle, and if their top-secret clues are right, they might uncover new evidence that explains the disappearances in this deadly and mysterious place.

Brand-new evidence reveals the secrets of a Nazi program to build a nuclear bomb; using cutting-edge science and technology, experts uncover classified files that reveal how close Hitler came to this terrifying super weapon.

A nuclear submarine goes missing while spying on Soviet maneuvers, and its wreckage is found on the ocean floor.

Beneath Yellowstone National Park is one of the world's largest active volcanoes, and it's poised to erupt at any moment; experts use seismic technology and visual imaging to reveal its catastrophic threat.

Using cutting-edge forensic analyses, some of the world's leading investigative experts uncover the stunning truth behind compelling mysteries from ancient times to the recent past.

Three inmates are said to have escaped from Alcatraz prison, but even today, it's never been proven; new evidence might finally crack this notorious cold case, as experts use forensic science and cutting-edge technology to investigate fresh leads.

Adolph Hitler disappears from the world in an apparent suicide at the end of World War II, but theories of his possible escape continue to circulate; experts use forensic science to examine remains that could finally solve the mystery of his fate.

No one knows how Harry Houdini pulled off his death-defying escapes, but, now, a team of experts investigate his water torture illusion to reveal the secrets of this mysterious feat.

The bullet catch is one of the deadliest tricks in magic history, and no one knows if Houdini pulled off the illusion; a team of experts re-creates the famed trick to uncover how Houdini could have pulled off the feat that killed many of his peers.

One of Houdini's greatest escapes might have been a deep-cover conspiracy to spy for the American government, and experts recreate his break from a Siberian prison transport to investigate the mysteries behind this incredible feat.

Houdini's mysterious sudden death might not have been an accident, and experts re-create his buried alive escape to reveal how this deadly feat was performed and if the great magician was killed by forces far more insidious.

The bullet catch is one of the deadliest tricks in magic history, and no one knows if Houdini pulled off the illusion; a team of experts re-creates the famed trick to uncover how Houdini could have pulled off the feat that killed many of his peers.

One of Houdini's greatest escapes might have been a deep-cover conspiracy to spy for the American government, and experts recreate his break from a Siberian prison transport to investigate the mysteries behind this incredible feat.

Houdini's mysterious sudden death might not have been an accident, and experts re-create his buried alive escape to reveal how this deadly feat was performed and if the great magician was killed by forces far more insidious.

No one knows how Harry Houdini pulled off his death-defying escapes, but, now, a team of experts investigate his water torture illusion to reveal the secrets of this mysterious feat.

Beneath Yellowstone National Park is one of the world's largest active volcanoes, and it's poised to erupt at any moment; experts use seismic technology and visual imaging to reveal its catastrophic threat.

Using cutting-edge forensic analyses, some of the world's leading investigative experts uncover the stunning truth behind compelling mysteries from ancient times to the recent past.

When a Chinese moon rover breaks down, a scientist at NASA points to a mysterious material that seemed to sabotage the Apollo missions decades earlier; the Rosetta spacecraft discovers a comet that appears to be singing.

After Neil Armstrong's moonwalk, he leads an expedition into the Amazon to find a legendary library that holds all knowledge of an advanced alien civilization; experts ask if a close encounter on the moon's surface inspired Armstrong's quest.

Life may have been found on Mars; mysterious Moon Pigeons.

With more than 80 moons, Saturn could rank among the most dynamic planetary system in Sol's neighborhood; with its giant underground oceans and protective magnetic fields, experts explore how Saturn's moons offer new insight into the Solar System.

Dark Matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to eluded scientists today.

Dinosaur fossil season has begun, and Montana rancher Clayton Phipps finds what might be an extremely rare and valuable fossil on his family's property.

Clayton Phipps continues his excavation of a rare carnivorous dinosaur on his Montana ranch; Mike Harris and son Jake prepare to sell their prized Tyrannosaurus rex fossil; Aaron Bolan hunts for an Ankylosaurus.

Clayton Phipps and his team prepare to flip a 20,000-pound carnivore fossil out of the earth and onto a flatbed to get it to the lab for analysis; Mike Harris hunts for a duckbill skull; Jared Hudson uncovers an ancient reptile.

Clayton must haul his 20,000-pound dinosaur fossil over 200 miles to a lab where it will finally be identified; the Harris/Bolan clan chases poachers off of their land; Jared makes a last-ditch effort to bring in some money this season.

Clayton returns to his ranch in Montana to hunt for quick finds at Old Faithful. In Wyoming, Mike Harris and his team continue excavating their triceratops site hoping to uncover the valuable horns.

In Montana, Clayton Phipps prepares to learn if his carnivore skeleton belongs to a tyrannosaurus rex or the controversial nanotyrannus; in Wyoming, Mike Harris and Aaron Bolan race against the impending winter digging at a promising new site.

A fire-breathing crater burns in the middle of a desert, and some believe it to be a gateway to hell; a deadly shark lurks in a golf course water hazard; a giant white blob threatens a town in California.

An explorer searching for treasure at a Mayan sacrificial site is attacked by a mysterious underwater fog; thousands of fish spontaneously jump to their deaths; something alien appears over the skies of Los Angeles.

Evidence of ghostly apparitions at a Civil War battlefield; when mysterious blue fires start near Yellowstone, experts worry if a supervolcano eruption is imminent; near the site of the Salem Witch Trials, an eerie spectacle stuns scientists.

A giant creature in an armor of ice is spotted in the Alaskan wild, and some suspect it's a deadly mythical monster; a jet has a close encounter with an unknown object; evidence of a deadly lightning strike invites paranormal explanations.

Deep sea explorers discover an unknown monster thousands of feet beneath the ocean; killer fog threatens a town in the American Midwest; a truck spontaneously explodes on a busy freeway.

A strange creature similar to the Loch Ness Monster is spotted in the United States; experts analyze evidence of a giant scaly egg, and some wonder if it belongs to a dragon; birds are suddenly vaporized by an invisible death ray.

When a mysterious predator eats a shark, experts wonder if a prehistoric monster is to blame; a sinister sight is caught on tape near Russia's Area 51 and the evidence might point to a cover-up.

Deep sea explorers discover an unknown monster thousands of feet beneath the ocean; killer fog threatens a town in the American Midwest; a truck spontaneously explodes on a busy freeway.

A strange creature similar to the Loch Ness Monster is spotted in the United States; experts analyze evidence of a giant scaly egg, and some wonder if it belongs to a dragon; birds are suddenly vaporized by an invisible death ray.

When a mysterious predator eats a shark, experts wonder if a prehistoric monster is to blame; a sinister sight is caught on tape near Russia's Area 51 and the evidence might point to a cover-up.

A giant creature in an armor of ice is spotted in the Alaskan wild, and some suspect it's a deadly mythical monster; a jet has a close encounter with an unknown object; evidence of a deadly lightning strike invites paranormal explanations.

In Montana, Clayton Phipps prepares to learn if his carnivore skeleton belongs to a tyrannosaurus rex or the controversial nanotyrannus; in Wyoming, Mike Harris and Aaron Bolan race against the impending winter digging at a promising new site.