Treasure hunters have searched for a lost Incan city of untold wealth for a century, but new technology might finally locate its riches; a strange mountain in Egypt sparks an investigation into Cleopatra's gems and the tomb of Alexander the Great.

Researchers investigate a strange glowing lake reported to turn things into stone; a structure in Africa that resembles Stonehenge is said to be the resting place of a mythical giant.

A mysterious Stonehenge-like structure in Russia may have links to the Nazis; experts uncover clues to a megatsunami with the power to devastate the United States; a huge lake appears in the Sahara overnight.

Treasure hunters have searched for a lost Incan city of untold wealth for a century, but new technology might finally locate its riches; a strange mountain in Egypt sparks an investigation into Cleopatra's gems and the tomb of Alexander the Great.

An abandoned city in the African jungle may be haunted by the malevolent spirits of cannibals; Mount Vesuvius shows signs of an awakening, and the mafia could be to blame; experts investigate Adolf Hitler's secret Nazi UFO program.

Legend has it that the Knights Templar discovered a great treasure in Jerusalem and may have brought it back to England.

Many ancient cultures allude to the existence of giants; tombs and skeletons of the alleged beings are discovered in Sardinia.

Adam and Jamie take a fan mail film and use it to dial in on a phone book fable; the rest of the team test a fishy tale of Hollywood pyrotechnics with their own big bang theories.

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

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

Hollywood crash clichés; driving through glass; plowing throw traffic; firing an RPG at an SUV.

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.

When a U.S. Air Force intercept aircraft chases after a UFO, it vanishes forever without a trace; a new investigation tries to uncover what caused this mysterious disappearance.

When someone picks up a radio distress call from a seven-year-old boy lost alone in the desert, authorities embark on a search-and-rescue mission to find him; as the hunt continues, the case becomes more and more mysterious.

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

When a powerful radio beam originating from deep space is detected by experts on Earth, some suspect it's hard evidence of extraterrestrial life; new investigations into this shocking signal might reveal the truth.

When two experts build their own radio-listening station to intercept the secret communications of American and Soviet astronauts, they capture traces of a haunting voice that may be a lost Russian cosmonaut.

Experts use cutting-edge technology to investigate a mysterious phenomenon at the tomb of a 3,000-year-old Egyptian pharaoh.

Some believe the fire on Apollo One that killed three astronauts was a top-secret cover-up, and a team of experts investigates 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 investigates 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 investigates this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

Following the inside story of NASA engineers as they race to build and launch the rocket, Artemis I, as it prepares for missions that will transport humans to the moon, then launch a journey to Mars and beyond.

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 investigates this strange piece of evidence, the trail leads all the way to some of Hollywood's biggest names.

Following the inside story of NASA engineers as they race to build and launch the rocket, Artemis I, as it prepares for missions that will transport humans to the moon, then launch a journey to Mars and beyond.

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.

Experts use cutting-edge technology to investigate a mysterious phenomenon at the tomb of a 3,000-year-old Egyptian pharaoh.

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

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

The whole team gets together to test myths about survival; in Coffin Punch, Kari, Tory and Grant test the silver screen saga; Adam and Jamie question what bullet-proof is.

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."

Accordions; pineapples; artificial joints.

Giant valves; sardines; barographs; disposable diapers.

Heated skate blades; gliders; hand bells; fire hoses.

Induction cooktops; truck scales; Tetra Pak containers; harmonicas.

All-terrain vehicles; alpine skis; laser cutters; marble sculptures.

How items such as socket sets, leather shoes, aluminum water bottles and bike chains are manufactured.

Carved wood sculptures; flatware; cow bells; fountain pens.

Olive oil; lift trucks; seamless rolled rings; ski boots.

How traffic signal poles, coffee filters and chainsaw mining machines are made.

Time delay locks; brownies; pallet dispensers.

Bead wire; mini pepperoni; irrigation sprinklers.

Mouth-blown window glass; water pumps; sake.

Surrounded by a mysterious trench, only one Egyptian pyramid was ever constructed to look like it floats on water; experts decode the ancient secrets of the pharaoh that are locked inside its hidden tunnels.

The Valley of the Queens is a vast necropolis concealing some of Egypt's most miraculous tombs and powerful women; now, investigators use cutting-edge tech to explore lost tunnels and uncover the enigmatic secrets behind these ancient pharaohs.

The secrets of the world's oldest sunken city are lost to history, but hi-tech underwater archaeology answers questions that books cannot; experts explore sunken ruins and reveal new discoveries about one of the first great empires.

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

Deep in the Iraqi desert, a ziggurat towers over the remains of the first civilization ever known in human history; armed with pioneering satellite imagery, experts investigate the dark mysteries behind the ancient structure.

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 examine new evidence uncovered in Turkey that may reveal more about the notorious tale of the Trojans.

Exploring the entire story of King Tut deep in the heart of Egypt, from the initial discovery by archaeologist Howard Carter to the curse of the pharaoh.

Archaeologists examine new evidence uncovered in Turkey that may reveal more about the notorious tale of the Trojans.

Exploring the entire story of King Tut deep in the heart of Egypt, from the initial discovery by archaeologist Howard Carter to the curse of the pharaoh.

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.

The Valley of the Queens is a vast necropolis concealing some of Egypt's most miraculous tombs and powerful women; now, investigators use cutting-edge tech to explore lost tunnels and uncover the enigmatic secrets behind these ancient pharaohs.

The secrets of the world's oldest sunken city are lost to history, but hi-tech underwater archaeology answers questions that books cannot; experts explore sunken ruins and reveal new discoveries about one of the first great empires.

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

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.

Legends Hypershock and Bite Force 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.

The galaxy is full of stars ready to explode into supernovas, a stellar detonation powerful enough to destroy all life on Earth; it's an event that hasn't occurred in 400 years, and the search is on to locate which star may be next.

New discoveries reveal an astonishing supermassive black hole that was born during the earliest days of the cosmos, and finding out how this giant grew so large so quickly may help to explain the very formation of the universe itself.

New discoveries have revealed thousands of exoplanets beyond the solar system, and some resemble earth enough that one could be a new home for humanity; with cutting-edge technology, finding the perfect one is the scientific challenge of the age.

Exploring the many different interpretations of the legendary relic, the possibility of its actual existence, and where it might be located.

Investigating the mysterious figures in Greek society known as oracles, who reputedly spoke the word of the gods.

Investigating the claim that the Nazis created a flying saucer at a secluded research facility, and that the United States and Russia obtained the secret technology after World War II.

Enigmatic inventor Nikola Tesla, who was responsible for many electrical and radio advancements, dies in poverty and under FBI suspicion.

Investigating whether the mysterious group known as the Illuminati is an actual secret society operating in the shadows or simply the invention of conspiracy theorists.

The historic city of Petra in southern Jordan may contain treasures hidden within its rose-colored stone walls.

The longest known cave system in the world spans hundreds of miles beneath the hills of Kentucky, and containing prehistoric artifacts and ancient human remains, experts reveal a subterranean mystery that may have changed the course of U.S. history.

Descending more than 200 feet beneath the Arizona bedrock lies the largest dry cave system in North America; experts explore this vast subterranean network to reveal the mysteries and undiscovered treasure that remain hidden within its walls.

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.

Deep beneath the streets of Cincinnati lies a network of deserted tunnels and caverns that contain a remarkable history of the city's origins, and now, experts investigate to reveal who built this underground labyrinth and why it was abandoned.

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.

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.

Deep beneath the streets of Cincinnati lies a network of deserted tunnels and caverns that contain a remarkable history of the city's origins, and now, experts investigate to reveal who built this underground labyrinth and why it was abandoned.

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.

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.

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.

Investigating whether the mysterious group known as the Illuminati is an actual secret society operating in the shadows or simply the invention of conspiracy theorists.

The historic city of Petra in southern Jordan may contain treasures hidden within its rose-colored stone walls.

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

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

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.

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.

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.

An expedition on Europe's tallest mountain unearth a decapitated human body; experts uncover a mummified Russian WWII soldier near a wartime shelter.

Mountain climbers in California find the body of a U.S. Army soldier; strange bundles of canvas and wood are discovered on an Alaskan mountain; volcanic glass is found in an unexpected place; a vital World War II weather station is uncovered.

Archaeologists make a grim discovery when they uncover the remains of a mummified boy buried in the frozen Siberian landscape, and as researchers continue their excavation, they uncover 88 additional graves linked to a mysterious, ancient necropolis.

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.

Climbers make a shocking discovery when they encounter the remains of two human bodies high atop New Zealand's Mount Cook; after a forensic investigation, a decades-old mystery reignites that could rewrite mountaineering history.

An unidentified metal object is found on Kiska Island; a centuries-old gold mining mystery is investigated; in Siberia, a network of ice tunnels is explored; fossils unearthed in the Canadian Arctic lead to the discovery of a new species.

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

A bizarre, tentacled black mass emerges from the seas on an island in the Caribbean, and on-lookers are horrified as it writhes ashore; experts use cutting-edge tech to investigate the origin of this alien invader.

A man sees a doctor complaining of agonizing facial pain, and when they investigate, they discover a strange parasitic species living deep in the man's nose; footage of the grisly encounter reveals what happened next.

Footage of a wolf-like creature in the remote wilderness of northern Canada could be evidence of a dire wolf, a prehistoric beast that went extinct at the end of the last Ice Age; experts use cutting-edge technology to investigate if it has returned.

Two young men capture a ghostly figure that begins chasing them on a deserted road in the mountains of Jordan; experts investigate and uncover local tales of black magic practitioners and demonic entities with supernatural powers.

When footage reveals a man's leg taking on a life of its own, it appears that something alien is trying to burst free; cutting-edge science investigates what explains this strange possession, and what it takes to exorcise the invader inside.

A young woman captures a doll that mysteriously comes to life inside a closet as she house sits alone in Dallas; experts investigate and reveal terrifying accounts of haunted dolls possessed by demonic souls.

Two young men capture a ghostly figure that begins chasing them on a deserted road in the mountains of Jordan; experts investigate and uncover local tales of black magic practitioners and demonic entities with supernatural powers.

When footage reveals a man's leg taking on a life of its own, it appears that something alien is trying to burst free; cutting-edge science investigates what explains this strange possession, and what it takes to exorcise the invader inside.

A young woman captures a doll that mysteriously comes to life inside a closet as she house sits alone in Dallas; experts investigate and reveal terrifying accounts of haunted dolls possessed by demonic souls.

Footage of a wolf-like creature in the remote wilderness of northern Canada could be evidence of a dire wolf, a prehistoric beast that went extinct at the end of the last Ice Age; experts use cutting-edge technology to investigate if it has returned.

An unidentified metal object is found on Kiska Island; a centuries-old gold mining mystery is investigated; in Siberia, a network of ice tunnels is explored; fossils unearthed in the Canadian Arctic lead to the discovery of a new species.

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

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

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

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.

The hidden kingdom of microscopic alien organisms shapes the universe as much as galaxies, stars, and planets; new discoveries reveal how bacteria, viruses and other microorganisms built life on Earth and influence humanity's future in 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.

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 a community when a condominium complex collapses in Miami, resulting in one of the deadliest engineering disasters in American history; experts investigate and reveal potential flaws in the structure's flat slab construction.

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.

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.

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.

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 rebuild it.

They tower over urban landscapes, spread across city blocks and span mountainous regions, each a modern marvel of technological innovation. But how are the world's most remarkable superstructures built? This series showcases key aspects, with footage filmed during construction along with CGI to reveal building processes with astonishing detail. Take, for example, the 71,000 seat Mercedes-Benz Stadium in Atlanta. The $1.4 billion stadium is hailed as an architectural wonder because of its eight-petal retractable roof. Other episodes include a look at a cruise ship that holds more than 7,000 passengers and crew members; a flood barrier in Venice designed to prevent the ancient city from sinking into the ocean; an ambitious circular subway system running directly underneath Copenhagen, Denmark; and the world's longest suspension bridge ever built in the Arctic Circle.

The Statue of Liberty is an artistic wonder of construction and the most famous symbol of freedom in the world; now, experts use cutting-edge engineering to reimagine what the statue would look like if rebuilt to record-breaking new heights.

The Hoover Dam was an epic engineering experiment that created an oasis of American opportunity during the darkest decade of the 20th century; modern engineers believe reconstructing it may hold the secret solution to renewable energy innovation.

They tower over urban landscapes, spread across city blocks and span mountainous regions, each a modern marvel of technological innovation. But how are the world's most remarkable superstructures built? This series showcases key aspects, with footage filmed during construction along with CGI to reveal building processes with astonishing detail. Take, for example, the 71,000 seat Mercedes-Benz Stadium in Atlanta. The $1.4 billion stadium is hailed as an architectural wonder because of its eight-petal retractable roof. Other episodes include a look at a cruise ship that holds more than 7,000 passengers and crew members; a flood barrier in Venice designed to prevent the ancient city from sinking into the ocean; an ambitious circular subway system running directly underneath Copenhagen, Denmark; and the world's longest suspension bridge ever built in the Arctic Circle.

The Statue of Liberty is an artistic wonder of construction and the most famous symbol of freedom in the world; now, experts use cutting-edge engineering to reimagine what the statue would look like if rebuilt to record-breaking new heights.

The Hoover Dam was an epic engineering experiment that created an oasis of American opportunity during the darkest decade of the 20th century; modern engineers believe reconstructing it may hold the secret solution to renewable energy innovation.

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 rebuild it.

Tragedy strikes a community when a condominium complex collapses in Miami, resulting in one of the deadliest engineering disasters in American history; experts investigate and reveal potential flaws in the structure's flat slab construction.

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.

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

In a last-chance tournament, eight bots battle it out for one of the last spots in the 2018 World Championship Sweet 16.

Reigning champion Tombstone and newcomer Whiplash fight to the finish as an advanced group of bots goes head-to-head in the BattleBox.

White dwarfs are small, dead stars with a dangerous side, and they are capable of exploding into supernovas and destroying planets; new research suggests these mysterious phenomena may be the key to understanding the universe itself.

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.

The Avenue of the Sphinxes has now been unearthed in the biggest excavation in Egyptian history; using cutting-edge CGI, investigators reveal the hidden secrets of the sphinxes.

The magnificent tomb of Alexander the Great mysteriously vanishes and becomes a legend; using CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

The lost city of Olous: A great metropolis submerged in the Mediterranean; archaeologists uncover its secrets using pioneering technology and CGI reconstruction.

In 373 B.C., the Greek city of Helike vanished; archaeologists believe they've found the ruins of the great lost metropolis; using CGI, experts re-create the city's final moments and reveal its links to the greatest lost land of all -- Atlantis.

The Dendera Temple is one of the best-preserved temples in all of Egypt; experts decipher its mystifying zodiac images and uncover the ceremonial events that took place at this sacred site, and stunning CGI rebuilds this grand complex in its prime.

Palmyra: pearl of the Syrian Desert; experts return to the site and use CGI reconstruction to reveal the secrets of Palmyra's ancient engineers.

El Dorado, the legendary city of gold, captivated Europeans in the 16th and 17th centuries, sparking endless quests for hidden treasures; fueled by greed, these expeditions led to the loss of countless lives.

Tutankhamun, Egypt's teenage pharaoh, leaves an enduring legacy in the 10 short years he ruled; given questions surrounding his untimely death, Tutankhamun remains one of history's enigmas.

Explorers investigate the snow-covered Ararat Mountains for remains of Noah's Ark; two separate expeditions claim discoveries in different areas, fueling debates over the truth of the story.

In 1532, Spanish conquistadors encounter the advanced Inca Empire; despite their sophisticated infrastructure, the Inca falls within decades; the story of how a powerful empire is overtaken by a small group of conquistadors remains mysterious.

The Roman Empire fell in the year 476, yet questions linger; did it truly fall or does it continue as the Byzantine Empire? What caused its demise? The debate remains controversial even among modern historians.

The ten plagues of Egypt are supposedly sent by God to convince Pharaoh to free the Israelites; some scientists link these events to a volcanic eruption or climate change; could these be natural occurrences or are they divine warnings?

Rameses II led Egypt through a sixty-year golden age as a powerful pharaoh; despite his recorded achievements, researchers investigate lingering mysteries regarding his wife Nefertari and his death.

The Roman Empire fell in the year 476, yet questions linger; did it truly fall or does it continue as the Byzantine Empire? What caused its demise? The debate remains controversial even among modern historians.

The ten plagues of Egypt are supposedly sent by God to convince Pharaoh to free the Israelites; some scientists link these events to a volcanic eruption or climate change; could these be natural occurrences or are they divine warnings?

Rameses II led Egypt through a sixty-year golden age as a powerful pharaoh; despite his recorded achievements, researchers investigate lingering mysteries regarding his wife Nefertari and his death.

In 1532, Spanish conquistadors encounter the advanced Inca Empire; despite their sophisticated infrastructure, the Inca falls within decades; the story of how a powerful empire is overtaken by a small group of conquistadors remains mysterious.

Palmyra: pearl of the Syrian Desert; experts return to the site and use CGI reconstruction to reveal the secrets of Palmyra's ancient engineers.

El Dorado, the legendary city of gold, captivated Europeans in the 16th and 17th centuries, sparking endless quests for hidden treasures; fueled by greed, these expeditions led to the loss of countless lives.

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.

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.

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

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

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.

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.

New theories claim that the legendary sunken city of Atlantis actually could have been in the Americas; Rob Nelson and Stefan Burns investigate evidence that might shed more light on one of the world's greatest mysteries.

Retracing the steps of freedom seekers escaping on the Underground Railroad, archaeologists use high-tech to explore a Florida fort that was nearly erased from history.

Archaeologists unearth the lost community of Quindaro, Kan., a long-forgotten abolitionist town that shielded Freedom Seekers from bounty hunters; in Illinois, experts use tech tools to explore a secret underground tunnel.

Archaeologists uncover evidence of a Freedom Seeker community in the swampy marshlands between Virginia and North Carolina; in Maryland, experts investigate artifacts that may confirm the location of Harriet Tubman's childhood home.

Underwater archaeologists search for the wreck of the USS Planter, a Civil War vessel seized by Freedom Seekers to escape the Confederacy; in Canada, experts use tech to uncover how Freedom Seekers lived once they made it to their new homeland.

An unassuming factory marks a revolutionary leap forward -- and upward -- in how humans travel; due to ongoing legal battles and innovative designs from their many competitors, these historic upstarts would soon be grounded.

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.

An upstart mining town fuels the American war effort in both World Wars with its bountiful deposits of lead and zinc; the dusty remains of the mining efforts that put Picher on the map would condemn the city to abandonment years later.

A railroad enterprise once built this company town for its workers to live in, but when thousands of employees went on strike, the military intervened; the history of the complex remains as relevant as ever.

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.

An upstart mining town fuels the American war effort in both World Wars with its bountiful deposits of lead and zinc; the dusty remains of the mining efforts that put Picher on the map would condemn the city to abandonment years later.

A railroad enterprise once built this company town for its workers to live in, but when thousands of employees went on strike, the military intervened; the history of the complex remains as relevant as ever.

An unassuming factory marks a revolutionary leap forward -- and upward -- in how humans travel; due to ongoing legal battles and innovative designs from their many competitors, these historic upstarts would soon be grounded.

Retracing the steps of freedom seekers escaping on the Underground Railroad, archaeologists use high-tech to explore a Florida fort that was nearly erased from history.

Archaeologists unearth the lost community of Quindaro, Kan., a long-forgotten abolitionist town that shielded Freedom Seekers from bounty hunters; in Illinois, experts use tech tools to explore a secret underground tunnel.

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 take on two classic comedy myths; Kari, Grant and Tory try to make homemade diamonds.

A classic physics problem is put to the test; the team tests two "magic bullet" theories.

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 Shroud of Turin is alleged to be the burial cloth of Jesus Christ; forensic analysis is used to determine the truth.

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

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.

Startling new evidence suggests that Hitler's second-in-command was secretly replaced by a doppelgänger to escape war crimes and impending justice; armed with cutting-edge forensic science, a team of experts investigates.

American diplomats stationed in Cuba begin to experience a bizarre mixture of noxious neurological symptoms and seem to be under a mysterious attack; experts use cutting-edge forensic science to determine if a sinister, sonic weapon is at play.

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.

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.

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.

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.

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.

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.

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.

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.

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

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.

The team tests YouTube myths; giant ball of Legos; the explosive power of match heads.

Adam and Jamie test out theories surrounding driving in the rain; they find out whether it is possible to stay dry by putting pedal to the metal.

The whole team tackles the improbable myth of a skydiver hitting a playground seesaw and sending a small girl flying seven stories into the air.

Baseball gloves; medical electrodes; Stetson hats.

Pneumatic impact wrenches; cultured marble sinks; plantain chips; NASCAR stock cars.

Jaws of life; artificial Christmas trees; soda crackers; ratchets.

Thermometers; produce scales; aircraft painting; luxury chocolates.

Professional cookware; luxury inlaid boxes; high-efficiency water heaters; scooters.

More everyday items are put under the microscope to discover how mini GP motorcycles, fig biscuits, tool boxes and pipe bends are made.

Western revolver replicas; arc trainers; used-oil furnaces; vegetable peelers; pizza cutters.

More everyday items are put under the microscope; discovering how golf clubs, waffles, custom wires and cables and train wheels are made.

Statue restoration; tripods; Polish sausage.

Champagne; ATMs; marine turbochargers.

Explore the ins and outs of the making of sharpening steels, bladder pumps, ironing boards and kayak paddles.

Learning how champagne hoods and foils, pneumatic delivery systems, espresso machines and pizza ovens are made.

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

Adam and Jamie challenge the science of virtual worlds from video games.

The team tests Superhero gadgets including the grappling hook, the phantom ring punch and the phone booth change.

Myths Strike Back when Adam and Jamie once again confront the dark side of science in a workshop not so far away.

Stow your tray tables because in this aviation extravaganza Adam and Jamie tackle two flights of fantasy.

The team tests if NASA really did land on the Moon.

NASA sends Americans back to the Moon for the first time in over 50 years -- farther than any humans have traveled, and in a new spacecraft. From mission prep to splashdown on Earth, join the Artemis II crew on this historic 10-day voyage of exploration.

Don Wildman goes deep into the Nevada desert to see if he can uncover the truth about what's been going on at the top-secret base of Area 51.

NASA sends Americans back to the Moon for the first time in over 50 years -- farther than any humans have traveled, and in a new spacecraft. From mission prep to splashdown on Earth, join the Artemis II crew on this historic 10-day voyage of exploration.

Don Wildman goes deep into the Nevada desert to see if he can uncover the truth about what's been going on at the top-secret base of Area 51.

The team tests if NASA really did land on the Moon.

Adam and Jamie challenge the science of virtual worlds from video games.

The team tests Superhero gadgets including the grappling hook, the phantom ring punch and the phone booth change.

Minotaur continues its quest for the BattleBots title in an epic fight with Blacksmith, a rematch two years in the making.

Undefeated bots Bronco and Sawblaze battle to the death to preserve their perfect records in a night of epic clashes.

In a special tournament, BattleBots Team USA takes on bots from around the world in an international showdown of combat robotics.

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.

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.

New discoveries at the site of an alleged long-lost gold mine could lead investigators to a $200 million payday; experts use cutting-edge tech to investigate clues in long-lost maps and relics to recover the Lost Dutchman's treasure.

The legend of the Fountain of Youth might finally be explained by hidden messages encoded in a 500-year-old map, and using cutting-edge archaeological methods, experts explore forgotten caves and perilous waters to reveal long-lost secrets.

New evidence from one of the world's oldest maps offers clues to a long-lost civilization of untold treasure, and this cutting-edge expedition might finally prove that this mysterious kingdom is the ancestral home of the ancient Egyptians.

Long-lost maps offer fresh clues in the hunt for the Ark of the Covenant; using the latest archaeological methods, experts retrace through steps through the Holy Land, Egypt and Ethiopia to make a game-changing discovery.

Using a long-lost treasure map purporting to show the whereabouts of a missing ship buried with gold and silver in the California desert, a team of experts uses the new evidence to get closer to a game-changing discovery.

New evidence suggests the Mayan empire may have reestablished themselves in America; using high-tech mapping systems, Justin and Emiliano scan the Florida landscape as they search for ancient canoes and flat-topped pyramids.

New evidence suggests the Knights Templar fled Europe and rebuilt their warrior order in the Americas a century before Christopher Columbus; experts use technology to investigate long-lost relics to see if they confirm this game-changing theory.

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.

A mysterious cave system is home to some of the oldest human remains ever discovered, and today, the explorers and researchers investigating this site are uncovering shocking evidence of cannibalism among its Ice Age denizens.