A villager films a river bank suddenly rising as though a gigantic creature is emerging from beneath the waters in India; experts investigate a potential network of criminal gangs who may be stripping river beds of a very valuable commodity.

Cameras capture an intense explosion in Ontario, Calif., that rips apart a suburban home and sends panicked onlookers running for their lives; experts investigate and suspect a potential detonation of an enormous cache of illegal fireworks.

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.

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.

When NASA discovers something strange on Saturn's biggest moon, experts investigate if aliens feeding on the world's electric atmosphere could be the culprit; the disturbing evidence points to an apocalypse if these monsters ever make it to Earth.

A strange discovery by NASA's Mars Curiosity rover suggests the Red Planet was home to an alien nuclear war 300 million years ago; experts investigate if an extraterrestrial Armageddon transformed an Earth-like world into a wasteland.

Lost tapes show that Apollo astronauts heard unexplained transmissions on the far side of the moon; an amateur astronomer finds an odd disturbance in Martian atmosphere; an unidentified object in Earth orbit starts stalking Russian spacecraft.

Gravitational waves are helping scientists explore the cosmos in revolutionary, new ways, and the discoveries they make are revealing the universe's greatest mysteries.

The Rosetta mission is a groundbreaking expedition to land on a comet for the very first time; special access reveals what this cutting-edge journey discovers and how these mysterious objects help create life on Earth.

According to the Bible, Noah's Ark was a world-changing engineering feat, and it took cutting-edge construction to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

As floodwaters unleash havoc in Venice, Italy, experts use the latest technology and modern-day science to explore the feasibility of rebuilding it.

The Great Wall of China is one of the world's greatest engineering marvels, and it took dangerous, cutting-edge construction to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be as deadly.

Rome's Pantheon hides the secret to the Roman Empire's power, and it took dangerous, cutting-edge engineering to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

Rome's aqueducts are one of the greatest engineering marvels in history, and it took dangerous, cutting-edge construction to build them; experts use the latest tech and modern-day science to reveal if building them a second time would be as deadly.

Egypt's Great Pyramid is one of the world's greatest and most mysterious marvels, and using cutting-edge tech and the latest engineering innovations, experts reveal what it would take to build the ancient wonder today.

New York's Brooklyn Bridge might be the most important bridge in the world, and it took dangerous, cutting-edge engineering to built it; experts use the latest tech and modern-day science to reveal if building it a second time would be as deadly.

Rome's Colosseum is the most famous stadium on the planet, and it took cutting-edge engineering and a fallen emperor to build it; experts use the latest tech and modern-day science to reveal if building it a second time would be just as difficult.

A devastating railroad inferno takes down a vital route on a historic river crossing in Arizona; using the latest cutting-edge technology, experts investigate the remaining incinerated evidence to determine what caused such a disastrous derailment.

A catastrophic construction disaster causes a casino parking garage to collapse with fatal consequences in Atlantic City; using the latest science, experts investigate and uncover evidence of missing reinforcements vital for structure stability.

Tragedy strikes in Cincinnati as a sudden bridge collapse leaves one of America's busiest highways at a complete standstill; using scientific methods, expert engineers investigate and reveal how a routine demolition unfolded so disastrously wrong.

A flash flood catastrophe brings one of America's most vital highways to a complete standstill in the California desert; using scientific methods, expert engineers investigate and discover how its bridge foundations lacked a crucial element.

A crane disastrously falls across two lanes of traffic during construction work on a landmark bridge in New York City.

Tragedy strikes in Cincinnati as a sudden bridge collapse leaves one of America's busiest highways at a complete standstill; using scientific methods, expert engineers investigate and reveal how a routine demolition unfolded so disastrously wrong.

A flash flood catastrophe brings one of America's most vital highways to a complete standstill in the California desert; using scientific methods, expert engineers investigate and discover how its bridge foundations lacked a crucial element.

A crane disastrously falls across two lanes of traffic during construction work on a landmark bridge in New York City.

A catastrophic construction disaster causes a casino parking garage to collapse with fatal consequences in Atlantic City; using the latest science, experts investigate and uncover evidence of missing reinforcements vital for structure stability.

Egypt's Great Pyramid is one of the world's greatest and most mysterious marvels, and using cutting-edge tech and the latest engineering innovations, experts reveal what it would take to build the ancient wonder today.

New York's Brooklyn Bridge might be the most important bridge in the world, and it took dangerous, cutting-edge engineering to built it; experts use the latest tech and modern-day science to reveal if building it a second time would be as deadly.

Neil Armstrong enters an unexplained spin; an Apollo 17 photo seems to show a US military outpost on the Moon; possible alien life swimming in the oceans of Jupiter's moons.

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.

Astronauts evacuate when a mystery object hurtles toward the ISS; a NASA secret agent goes undercover to retrieve missing moon rocks; scientists struggle to find answers when they discover a huge void at the edge of the solar system.

An explosion in the discovery of exoplanets is challenging everything we know about our universe; experts use cutting-edge astronomy to investigate these mysterious alien worlds and how they defy the laws of physics.

A brand-new NASA mission to the sun reveals cutting-edge discoveries about Earth's star; as the Parker Solar Probe dives through the sun's atmosphere, its findings challenge everything known about this strange place.

On the island of Madagascar, paleontologists discover an intact fossil unlike any known animal, living or extinct. Also, bizarre stone spheres are discovered in Costa Rica and the curious remains of a small man are found in Chiapas, Mexico.

In the Australian rain forests of Lake Eacham, a scientist discovers a mysterious mouse-like creature that glows in the dark; strange cylindrical tubes are uncovered in the forests of India; hundreds of human bones are found in a Belizean cave.

In Guatemala, archaeologists identify an ancient site containing a series of unknown structures; a lake full of jellyfish is studied on a remote South Pacific island; Argentinian researchers discover a complex that may have a dark past.

Millions of dollars of stolen Gold Rush treasure is rumored to have been stashed in a cave in Northern California; the search for the legendary treasure.

When an infamous pirate city sunk into the sea after a massive earthquake, a wealthy pirate's treasure may have disappeared with it; a hunt for the legendary lost pirate treasure of Henry Morgan.

A strange cave freezes in the summer and melts in the winter; a massive sand dune swallows a small child in an instant.

A massive supervolcano beneath Naples, Italy, may be on the verge of erupting again, which could have apocalyptic consequences across the planet; Rob Nelson and Stefan Burns use cutting-edge technology to investigate this disturbing new evidence.

An opulent chateau perched in the middle of a lake now stands dilapidated in the Loire Valley of France; experts investigate and uncover the remains of a festering palace whose owner was labeled a traitor by France's most notorious king.

A research complex housing two enormous satellites is now mysteriously derelict in the rural expanse of Woodbury, Ga.; experts investigate and uncover a facility where planetary scientists explored possible evidence of extraterrestrial intelligence.

A German house of healing becomes a place of evil, a tin mine out in the jungle becomes the object of colonial interests, and a remote complex in Texas has a long history stemming from America's relationship with Mexico.

A Nazi concentration camp gets used for a grotesque publicity stunt, Oscar Wilde is imprisoned after a well-publicized trial, and a building in Memphis intended to protect becomes a symbol of corruption.

A majestic estate for the rich and powerful now lies abandoned in the highlands of Argentina; experts investigate and uncover a once struggling hotel that was transformed into a luxurious resort outpost for elite Nazi German sympathizers.

A cluster of military defensive structures among a quaint holiday village lie deserted on a San Francisco Bay island; experts investigate and uncover a mysterious Civil War outpost that conceals a dark and hellish history.

A Nazi concentration camp gets used for a grotesque publicity stunt, Oscar Wilde is imprisoned after a well-publicized trial, and a building in Memphis intended to protect becomes a symbol of corruption.

A majestic estate for the rich and powerful now lies abandoned in the highlands of Argentina; experts investigate and uncover a once struggling hotel that was transformed into a luxurious resort outpost for elite Nazi German sympathizers.

A cluster of military defensive structures among a quaint holiday village lie deserted on a San Francisco Bay island; experts investigate and uncover a mysterious Civil War outpost that conceals a dark and hellish history.

A German house of healing becomes a place of evil, a tin mine out in the jungle becomes the object of colonial interests, and a remote complex in Texas has a long history stemming from America's relationship with Mexico.

A strange cave freezes in the summer and melts in the winter; a massive sand dune swallows a small child in an instant.

A massive supervolcano beneath Naples, Italy, may be on the verge of erupting again, which could have apocalyptic consequences across the planet; Rob Nelson and Stefan Burns use cutting-edge technology to investigate this disturbing new evidence.

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

Lost tapes show that Apollo astronauts heard unexplained transmissions on the far side of the moon; an amateur astronomer finds an odd disturbance in Martian atmosphere; an unidentified object in Earth orbit starts stalking Russian spacecraft.

Three cosmonauts mysteriously die as they re-enter Earth's atmosphere and NASA needs to know why; a declassified document shows a CIA plan to use a space disaster as a cover to start World War 3.

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

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.

Jeremy Wade takes a fresh look at the Battle of Actium; Jeremy investigates what could be the first recorded case of a whale rescuing a human.

Jeremy Wade examines new evidence that could finally reveal what happened to aviator Amelia Earhart; Jeremy investigates a strange anchor found in the Mediterranean Sea.

Jeremy Wade explores the hidden and dark secrets behind a 150-year-old shipwreck off the coast of Sisal, Mexico, revealing an unknown and troubling maritime past. Also, a mysterious boiling river hidden deep in the heart of the Amazon is uncovered.

Jeremy Wade explores a shipwreck that may contain stolen Nazi treasure, the priceless lost furnishings of the 18th century Amber Room; astonishing footage captures the exact moment when freight ship MV Arvin split in two and sank in the Black Sea.

Jeremy Wade follows investigators as they dive the wreck of the ferry MS Estonia; the case of America's notorious skyjacker DB Cooper takes an intriguing underwater twist.

Jeremy Wade explores an accident involving a Russian nuclear submarine on a top-secret mission, and shocking details emerge surrounding the vessel's design; scientists investigate ancient human remains emerging from a lake in Finland.

Exploring the puzzling disappearance of an Indonesian submarine; the latest research into an underwater phenomenon may help piece together how it vanished.

Jeremy Wade investigates the infamous shipwreck of the Titanic; locals are baffled when a bag containing 54 severed human hands is found on the banks of a Siberian river.

Aerial archaeologists capture bizarre, spider-like markings etched deep into the mountains of Northern Spain; experts investigate an ancient site that contained one of the largest and most important gold mining operations of the Roman Empire.

Aerial drone imaging captures clusters of enormous, perfectly round holes scattered along the coast of the Dead Sea in Israel; experts reveal a history of destructive water diversion linked to massive sinkholes devouring the region.

Aerial archaeologists use laser imaging to capture a distinct star-shaped pattern carved into the marsh of a Florida swamp; experts investigate and reveal a lost Civial War fort linked to an extraordinary community with a tragic past.

Satellite images capture a bizarre pattern of enormous circular clouds obscuring an island in the eastern Atlantic; experts investigate and uncover evidence of an unfolding natural disaster that could potentially threaten millions of lives.

Satellite images capture a mysterious fortification concealed beneath a patch of woodland in the remote stretches of Norfolk, England; experts investigate rival royal families and a lost castle that was destroyed during a medieval blood feud.

Aerial archaeologists use laser imaging to capture a distinct star-shaped pattern carved into the marsh of a Florida swamp; experts investigate and reveal a lost Civial War fort linked to an extraordinary community with a tragic past.

Satellite images capture a bizarre pattern of enormous circular clouds obscuring an island in the eastern Atlantic; experts investigate and uncover evidence of an unfolding natural disaster that could potentially threaten millions of lives.

Satellite images capture a mysterious fortification concealed beneath a patch of woodland in the remote stretches of Norfolk, England; experts investigate rival royal families and a lost castle that was destroyed during a medieval blood feud.

Aerial drone imaging captures clusters of enormous, perfectly round holes scattered along the coast of the Dead Sea in Israel; experts reveal a history of destructive water diversion linked to massive sinkholes devouring the region.

Jeremy Wade explores an accident involving a Russian nuclear submarine on a top-secret mission, and shocking details emerge surrounding the vessel's design; scientists investigate ancient human remains emerging from a lake in Finland.

Exploring the puzzling disappearance of an Indonesian submarine; the latest research into an underwater phenomenon may help piece together how it vanished.

Kari, Tory and Grant put a radio-frequency identification conspiracy theory to the test; Adam and Jamie test two myths about weapons.

Adam and Jamie test some flammable Hollywood fables; Kari, Grant and Tori break out the defibrillator.

Testing if an ordinary water heater has the ability to fly like a rocket, right through your house; this is a tale of explosive transformation.

Jamie and Adam test if a person with no flight training can safely land an airplane; Hollywood-inspired sky-diving myths.

George sends Greg to the World of Creation to learn more about traditional canning methods, which blend timeless craftsmanship with cutting-edge innovations to safeguard tomorrow's harvests.

Holograms, package-printing, skin culture and tinned sweet corn are put under the microscope to see how they are made.

The team experiments with flying remote-controlled airplanes, then tests the "cockroach survival" theory.

Adam and Jamie see if certain sound frequencies can convince people of paranormal activity; finding out if the smell of fear exists.

Michael Rooker ("The Walking Dead") helps the team test zombie myths; the more effective weapon, ax or gun; testing the strength of the living dead; outrunning or outsmarting a horde.Guests: Michael Rooker..

Examine a tiny skeleton in Chile that set off a firestorm of alien speculation, then explore a forgotten Silk Road settlement. Uncover evidence of a mass sacrifice in northern Peru and visit a multi-faceted military site from the age of the pharaohs.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Look inside the lost tomb of King Thutmose II and get new clues about Egypt's pharaohs, then dust off stone hunting structures in Saudi Arabia. Visit a 1,200-year-old mosque buried in the Negev Desert and inspect a 30-million-year-old predator skull.

Scan the skeleton of a drowned Stone Age fisherman in Chile and rediscover a vanished golden age in Egypt's lost city of Aten. Watch ancient Chinese mummies reignite a cultural debate, then discover a massive biblical-era moat in Jerusalem.

Inspect a Mongolian mass grave and learn the fate of a platoon of soldiers, then investigate a 5,000-year-old tavern in Iraq; examine an Egyptian scarab that's far from home and ancient tools that show where desert migration routes once lay.

Ponder the fate of a mummy buried with an anguished look on its face and learn the secret to Sumerian power in a buried Iraqi palace. Visit a lost oasis that may rewrite Arabian history, then travel New Mexican roads that align with the heavens.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Dig up a mysterious WW II bomber in the libyan desert, then see why the carved pillars in a turkish temple may be the world's oldest calendar; open a secret filled shrine in Jerusalem and unearth broken Iraqi bowls that have deep political meaning.

The Silk Road was the ancient trade route that connected Eastern and Western worlds. The road traveled through many countries and was a source of ancient mystery. Even today, the road is shrouded in mystery.

Dig up a mysterious WW II bomber in the libyan desert, then see why the carved pillars in a turkish temple may be the world's oldest calendar; open a secret filled shrine in Jerusalem and unearth broken Iraqi bowls that have deep political meaning.

The Silk Road was the ancient trade route that connected Eastern and Western worlds. The road traveled through many countries and was a source of ancient mystery. Even today, the road is shrouded in mystery.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Look inside the lost tomb of King Thutmose II and get new clues about Egypt's pharaohs, then dust off stone hunting structures in Saudi Arabia. Visit a 1,200-year-old mosque buried in the Negev Desert and inspect a 30-million-year-old predator skull.

Scan the skeleton of a drowned Stone Age fisherman in Chile and rediscover a vanished golden age in Egypt's lost city of Aten. Watch ancient Chinese mummies reignite a cultural debate, then discover a massive biblical-era moat in Jerusalem.

The team tests the truth behind some time-honored sayings and conventional wisdom.

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

Adam and Jamie test a mythical Confederate weapon; Kari, Grant and Tory try to beat a lie detector.

Throttle bodies; limestone fireplace mantels; candied fruit; linen ukuleles.

Rubber balls; motion chairs; Montreal smoked meat; motorized scooters.

Aerospace fasteners; cactus pear puree; lab reactors.

Wall beds; sundae cups; digital paintings; badminton rackets.

Fire extinguishers; doughnuts; shock absorbers; banjos.

Dress forms; boat propellers; duvets; faucets.

Bronze bells; wooden airplane propellers; charcoal briquettes; gas log fireplaces.

Pocket knives; soapstone products; electric pole transformers; snowshoes.

Examine how products like mountain bikes, rice and lever action rifles are manufactured and what materials are used for their production.

Saunas, Wheelchair Lifts, Dioramas.

More everyday items are put under the microscope; discovering how upright pianos are manufactured and flags are produced.

Everyday items are put under the microscope to discover how oil lamps are manufactured and chocolate mints are produced.

The sacred city of Nippur and the world's only ziggurat contain elusive mysteries to the ancient Sumerian people; now, archaeologists armed with pioneering tech are on a quest to reveal the secrets behind the earliest known civilization in history.

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 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 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.

Experts investigate the mysteries of the Bermuda Triangle using cutting-edge technology; as new discoveries reveal alien phenomena at the bottom of the ocean floor, researchers may finally uncover the truth behind this strange place.

The Iceman is the world's oldest and most perfectly preserved mummy; cutting-edge forensic technology reveals his darkest secrets, and these discoveries could change everything people know about the humans who lived 5,000 years ago.

Intrepid archaeologists make groundbreaking discoveries as they work to unravel the mysteries of an Ice Age highway, challenging everything previously thought about prehistoric humans and how they came to the Americas.

The Nazca Lines are alien-looking symbols carved into a remote desert more than a thousand years ago, and new discoveries might finally reveal what these strange images mean and if they explain the disappearance of the people who made them.

Intrepid archaeologists make groundbreaking discoveries as they work to unravel the mysteries of an Ice Age highway, challenging everything previously thought about prehistoric humans and how they came to the Americas.

The Nazca Lines are alien-looking symbols carved into a remote desert more than a thousand years ago, and new discoveries might finally reveal what these strange images mean and if they explain the disappearance of the people who made them.

The Iceman is the world's oldest and most perfectly preserved mummy; cutting-edge forensic technology reveals his darkest secrets, and these discoveries could change everything people know about the humans who lived 5,000 years ago.

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 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.

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

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

Two astronauts trapped in the vacuum of space face a horrible death; the first close up images of Pluto show an alien landscape; residents of Houston struggle to explain videos of unidentified flying lights captured above their city at night.

Determining the age of the universe continues to be an elusive endeavor for scientists as their results are conflicting, and without a definitive answer, everything that's known about the cosmos could be completely wrong.

Earth's history is marked by one cosmic disaster after another, forging the path of human evolution; now, experts explore how the Earth has teetered on the verge of destruction.

The top-secret construction of a massive nuclear bunker remained concealed under a palatial West Virginia hotel for decades; experts reveal how this vast subterranean structure was one of the most closely guarded Cold War secrets in U.S. history.

A strange, centuries-old labyrinth built into an abandoned quarry was built by an eccentric millionaire, and no one knows why; but now, a new excavation into this mysterious 9,000-foot tunnel system might finally reveal its dark secrets.

Caverns hidden deep inside a remote mountain are home to a precious mineral found nowhere else on Earth; experts and treasure hunters use cutting-edge technology to follow rumors of a mysterious long-lost mine in search of a payday.

A hidden, subterranean city built within the Rock of Gibraltar is an immense fortress to control the seas during World War II; new discoveries reveal the secrets of a long-lost chamber with evidence of high-stakes espionage.

Hidden beneath the town of Ramsgate, England, lies a hidden network of over three miles of air raid tunnels; experts investigate and uncover an extensive WWII bomb shelter that became a permanent refuge for many civilians after a devastating attack.

Buried nearly a mile beneath the Black Hills of South Dakota is a cutting-edge laboratory at the forefront of astonishing scientific research; experts reveal advancements engineers achieved more than a century ago that keep it operating today.

A decommissioned missile launch facility in Kansas remained one of the best kept subterranean military secrets of the Cold War; experts reveal how this abandoned underground complex transformed into a state-of-the-art survival bunker.

Josh Gates explores daring journeys, including the Kon-Tiki balsa raft crossing the Pacific, NASA's lunar rover making tracks on the moon and an airplane flying around the world without the use of fuel.

Josh Gates recounts the death-defying exploits of Edmund Hillary and Tenzing Norgay, who summit Mount Everest; two submariners plunge seven miles under the Pacific; a pilot skydives from the edge of space.

Josh Gates explores how club members' swashbuckling exploits inspired Hollywood; a bullwhip-cracking archaeologist may be the real-life Indiana Jones; a Nazi mountaineer's life-changing "Seven Years in Tibet" became a Brad Pitt star turn.

Josh Gates boldly explores members' most heart-pounding journeys into space; Apollo 13 astronauts fight to bring their crippled spacecraft 238,000 miles back to Earth and futuristic SpaceShipOne could give others a chance to travel to space.

Josh recounts a Himalayan mission to find the yeti and a filmmaker's pursuit of the dangerous elephant king; the starving crew of an Antarctic expedition makes difficult choices to survive.

Josh Gates tackles history's most chilling polar adventures, including Robert Peary and Matthew Henson's brave push to the North Pole as well as Ernest Shackleton's epic survival in Antarctic ice.

Josh Gates boldly explores members' most heart-pounding journeys into space; Apollo 13 astronauts fight to bring their crippled spacecraft 238,000 miles back to Earth and futuristic SpaceShipOne could give others a chance to travel to space.

Josh recounts a Himalayan mission to find the yeti and a filmmaker's pursuit of the dangerous elephant king; the starving crew of an Antarctic expedition makes difficult choices to survive.

Josh Gates tackles history's most chilling polar adventures, including Robert Peary and Matthew Henson's brave push to the North Pole as well as Ernest Shackleton's epic survival in Antarctic ice.

Josh Gates explores how club members' swashbuckling exploits inspired Hollywood; a bullwhip-cracking archaeologist may be the real-life Indiana Jones; a Nazi mountaineer's life-changing "Seven Years in Tibet" became a Brad Pitt star turn.

Buried nearly a mile beneath the Black Hills of South Dakota is a cutting-edge laboratory at the forefront of astonishing scientific research; experts reveal advancements engineers achieved more than a century ago that keep it operating today.

A decommissioned missile launch facility in Kansas remained one of the best kept subterranean military secrets of the Cold War; experts reveal how this abandoned underground complex transformed into a state-of-the-art survival bunker.

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.

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

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

Mars is infested with robots, orbiting the planet and roaming the Martian surface on a mission to uncover its secrets; now, Perseverance joins this dedicated group of machines to uncover if there is, or was ever, life on the Red Planet.

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

A villager captures a moment of horror as a mysterious series of explosions lights up a mountainside in India; experts investigate a possible link to lost plutonium during a Cold War spy mission that went disastrously wrong.

Cameras capture falling objects that explode into a colorful chain reaction over the skies of Andoya Island in Norway; experts investigate a secret WWII Nazi complex linked to a weapons technology that may have been discovered by the Russians.

Cameras onboard a massive cargo ship in the Black Sea capture the vessel buckling and breaking in half as if seized by a mysterious force; experts investigate a bizarre area of perilous waters linked to a history of Bermuda Triangle-like sinkings.

A vacationing family films waves of fire breaking along the shores of an Indonesian island; experts investigate a possible connection to a classified WWII beach-burning weapon developed by the British to incinerate invading armies.

A cube spins through the skies over Missouri, raising questions about its propulsion system.

Native American myths are steeped in the otherworldly, but new evidence and modern-day UFO sightings have experts rethinking these legends and depictions.

Investigators reveal the secret history of U.S. presidents and UFOs, from President Franklin D. Roosevelt's knowledge about a UFO battle over Los Angeles to President John F. Kennedy's alleged plan to share extraterrestrial secrets with the Russians.

Using archival audio recordings, official transcripts and incident reports, UFO researchers investigate what really happened during encounters between law enforcement personnel and UFOs.

UFO experts investigate whether the value, reverence and desire for gold is the result of extraterrestrial landings in the ancient past.

An exploration into whether breakthroughs such as high-energy lasers, antigravity technology and super-advanced aircraft are the result of human efforts alone or contact with UFOs.

UFO sightings have been caught on film across the United States, yet the government continues to deny the existence of extraterrestrials; recent news of the Pentagon's secret UFO program may reveal evidence of what the military has known for decades.

Although alien abduction claims are often dismissed as hoaxes or delusions, there are landmark cases that scholars struggle to refute; Calvin Parker retells his harrowing experience of being abducted near the Pascagoula River in Mississippi.

Evidence suggests contact with interstellar travelers in the distant past may have influenced humankind and many of its sacred sites.

UFO sightings have been caught on film across the United States, yet the government continues to deny the existence of extraterrestrials; recent news of the Pentagon's secret UFO program may reveal evidence of what the military has known for decades.

Although alien abduction claims are often dismissed as hoaxes or delusions, there are landmark cases that scholars struggle to refute; Calvin Parker retells his harrowing experience of being abducted near the Pascagoula River in Mississippi.

Evidence suggests contact with interstellar travelers in the distant past may have influenced humankind and many of its sacred sites.

An exploration into whether breakthroughs such as high-energy lasers, antigravity technology and super-advanced aircraft are the result of human efforts alone or contact with UFOs.

Native American myths are steeped in the otherworldly, but new evidence and modern-day UFO sightings have experts rethinking these legends and depictions.

Investigators reveal the secret history of U.S. presidents and UFOs, from President Franklin D. Roosevelt's knowledge about a UFO battle over Los Angeles to President John F. Kennedy's alleged plan to share extraterrestrial secrets with the Russians.

Earth is hit by 100 tons of rock from space every day; most burn up in the atmosphere, but a single rock wiped out the dinosaurs.

More than 100 million pieces of small space debris are floating around the Earth; a collision between two of these objects in low Earth orbit could be catastrophic.

When a massive star dies, it can direct a blast of radiation that could obliterate all life.

Aliens could be lethal killers who want to invade and plunder our world; a team of experts investigate extra-terrestrial beings and their threat to human life.

Until recently, black holes were only theoretical; scientists know that millions exist and some of them have the potential to be lethal to earth.

Experts discuss the many possible ways that could spark the beginning of the end for the universe, including when and why it would happen.

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.

When water unleashes its rage upon the planet, it becomes the ultimate bringer of death; whether it's from rain washing over the ground, rivers bursting their banks, or failed efforts to stem the flow, flooding is as inevitable as it is unstoppable.

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.

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.

Biblical scientists and scholars attempt to uncover evidence of lost cities.

Biblical scientists and scholars attempt to uncover evidence of lost cities.

Three teams face off in a festive engineering challenge that has them blasting trees into the center of Christmas Town, sending snowmen sky high and assisting Santa in his chimney ascent; failure to launch will have them on this year's naughty list.

Three teams of merry masterminds compete to see who can pack their pines with the most firepower, save Christmas Town from an Abominable Snowman and send toy soldiers to the gifting front lines; missing the mark gets their names on the naughty list.

The teams have to deliver letters, send decorations without breaking anything and give Santa's sleigh a turbo boost to claim the golden rocket tree-topper trophy.

Three teams face off in a festive engineering challenge that has them blasting trees into the center of Christmas Town, sending snowmen sky high and assisting Santa in his chimney ascent; failure to launch will have them on this year's naughty list.

Three teams of merry masterminds compete to see who can pack their pines with the most firepower, save Christmas Town from an Abominable Snowman and send toy soldiers to the gifting front lines; missing the mark gets their names on the naughty list.

The teams have to deliver letters, send decorations without breaking anything and give Santa's sleigh a turbo boost to claim the golden rocket tree-topper trophy.

Biblical scientists and scholars attempt to uncover evidence of lost cities.

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.

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.

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 discovery of extraterrestrial life might face an impossible challenge: the physics of the universe itself; using cutting-edge tech, experts might be on the verge of a groundbreaking find, and the evidence could already be in hand.

A countdown some of the most important things to help you survive the holidays.

A countdown of some of the odd things that might be found at grandma's house.

A countdown some of the best Christmas gifts and how they're made.

A countdown the five strangest and unusual products in the show's history.

Ancient scriptures describe the Ark of the Covenant as possessing an almighty force with the capacity to kill; now, an expert team of archaeologists trace the ark's destructive path in a quest to discover the truth behind its mythical power.

According to biblical scripture, the prophet Jeremiah hides the Ark of the Covenant at a remote location for safekeeping; a team of archaeologists investigate sacred sites and ancient tombs to retrace the possible journey of this lost artifact.

The holy order of the Knights Templar are believed to have located and seized the Ark of the Covenant centuries ago; now, expert historians follow the trail of this elusive order to uncover the truth behind this sacred relic's mysterious journey.

Some allege that the Ark of the Covenant was stolen by King Solomon's son and taken to Ethiopia thousands of years ago; now, archaeologists investigate new, mysterious leads to uncover the secrets behind this lost relic's elusive journey.

Lost for centuries, scholars believe the Ark of the Covenant never left Jerusalem and remains buried beneath this ancient city; now, a pioneering team of archaeologists is on a quest to unearth the most famous and treasured artifact in human history.

Ancient documents and legends suggest that the Ark of the Covenant may have been stolen by Roman legions and hidden in Rome; a team of archaeologists explore mystery cults and ancient catacombs to uncover the truth behind this treasured artifact.

A labor strike in an Arizona mining town ends in a mass kidnapping and deportation, a unique homesteading community gets its start in the Old West, and a leaning Carolina lighthouse becomes part of Civil War history.

The notorious owner of this Georgia plantation once held a sale of nearly 450 enslaved people; appalled at her husband's cruelty, the man's wife wrote and published a journal about the atrocities she witnessed.

At a nondescript bowling alley in South Carolina, evidence of a peaceful student protest that turned deadly comes to light; a series of tunnels in L.A. becomes a shady place for resourceful people in this sunny city.

A remote site in Arkansas plays a major role in a high-stakes Cold War drama, an ancient ruin in Cambodia is ravaged by one man's cruel deception and a French fort becomes the symbol of a heroic but doomed resistance.

A ghost town in Sicily has deep roots in organized crime; an obscure asylum in Pennsylvania shocks America and inspires a revolution; a mansion in Ireland becomes embroiled in a bizarre kidnapping plot.

A rural town in Oregon is invaded by an eccentric cult, a battered building in Florida plays a major role in the cigar trade, and a junkyard palace in New Jersey becomes the subject of controversy and rumors of the supernatural.

An eerie prison with a dark past that became the setting of an iconic Hollywood movie and alien monoliths on a strange and remote island are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A ghost town in Sicily has deep roots in organized crime; an obscure asylum in Pennsylvania shocks America and inspires a revolution; a mansion in Ireland becomes embroiled in a bizarre kidnapping plot.

A rural town in Oregon is invaded by an eccentric cult, a battered building in Florida plays a major role in the cigar trade, and a junkyard palace in New Jersey becomes the subject of controversy and rumors of the supernatural.

An eerie prison with a dark past that became the setting of an iconic Hollywood movie and alien monoliths on a strange and remote island are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A remote site in Arkansas plays a major role in a high-stakes Cold War drama, an ancient ruin in Cambodia is ravaged by one man's cruel deception and a French fort becomes the symbol of a heroic but doomed resistance.

Ancient documents and legends suggest that the Ark of the Covenant may have been stolen by Roman legions and hidden in Rome; a team of archaeologists explore mystery cults and ancient catacombs to uncover the truth behind this treasured artifact.