A crane collapse leaves seven dead on a holiday weekend in Manhattan; an investigation reveals how a shortcut taken while raising the crane left the machine swaying in the wind without proper lateral support.

A vital Mississippi River interstate crossing is discovered to be in danger of imminent collapse in Memphis; experts use the latest science to investigate and uncover severely compromised load-bearing tension members with a life-threatening weakness.

Tragedy strikes the heart of a city as an earthquake wipes out a building full of people in Christchurch, New Zealand; experts investigate an inadequate structural design and weakness in critical supporting columns.

A crane collapse leaves seven dead on a holiday weekend in Manhattan; an investigation reveals how a shortcut taken while raising the crane left the machine swaying in the wind without proper lateral support.

Catastrophe strikes Miami, Fla., as a 13-story condominium tower collapses with deadly debris; experts use the latest science to investigate and uncover an uncontrolled method of demolition that led to catastrophic failure.

Adam Savage teams up with TV personality Tory Belleci (Guests: Tory Belleci..

Adam Savage and inventors build a deadly fleet of junkyard vehicles that look straight out of.

A NASA probe captures an image of a familiar structure on Mars' surface.

Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS, which imperils the whole crew; NASA probe finds evidence of the possibility of life on Mars.

A probe malfunctions without cause as it enters deep space; a mission goes astray when an imposter breaches Mission Control; evidence of an invisible planet within the Solar System.

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 that can be found in deepest reaches of the cosmos.

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.

Don Wildman investigates the story behind an iconic photograph from Sept. 11, 2001, a NASA experiment that turned deadly and a Naval code-breaker determined to outsmart the enemy.

Don Wildman examines an unlikely alliance between the military and a mob boss, a death-defying voyage on the high seas and a high-flying heroine who went above and beyond the call of duty.

How a common dentist tool was the key to solving a bizarre mystery involving Thomas Jefferson; the helmet of a brave pilot who paved the way for space exploration; the story behind a young girl who stood up to the Nazis.

The story of how a trailblazer changed the course of history; the little-known story behind a classic piece of children's literature; a bizarre discovery floating in the middle of the ocean.

Don Wildman examines how a French electrician invented one of the best-selling toys of all time, how a craftsman's talent landed him in hot water and how one man's vision saved everyday Americans from nuclear war.

Don Wildman examines a replica of a lifeboat used during the Titanic disaster, a customized SUV known as a.

The largest complete dinosaur skeleton of its time; the golden cover of a record that contained the sounds of Earth; a medicine ball used by a U.S. president to save his life.

A secret structure on a sinister mountain, an industrial compound swallowed by a forest, and a mysterious run in a sand dune are strange deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A deserted town in Spain with a bloody past and a ghost fleet heading nowhere are homes to dark American secrets, and new discoveries reveal how they were built and why they were abandoned.

A haunted lighthouse on Lake Michigan, a town where everyone seems to have vanished all at once, and a secret complex of tunnels beneath London are deserted engineering projects.

A mysterious American pyramid built out of Cold War paranoia; a haunted prison; a strange cluster of structures in the Atlantic.

A Nazi fortress could have changed history if finished; an underwater graveyard harbors American treasures; a network of tunnels in New York were abandoned for mysterious reasons.

Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A mysterious American pyramid built out of Cold War paranoia; a haunted prison; a strange cluster of structures in the Atlantic.

A Nazi fortress could have changed history if finished; an underwater graveyard harbors American treasures; a network of tunnels in New York were abandoned for mysterious reasons.

Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A haunted lighthouse on Lake Michigan, a town where everyone seems to have vanished all at once, and a secret complex of tunnels beneath London are deserted engineering projects.

Don Wildman examines a replica of a lifeboat used during the Titanic disaster, a customized SUV known as a.

The largest complete dinosaur skeleton of its time; the golden cover of a record that contained the sounds of Earth; a medicine ball used by a U.S. president to save his life.

When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot; recent discoveries shed new light on the destruction of Sodom and Gomorrah; a missing nuclear weapon could threaten a NASA base in the Arctic.

A mysterious object is orbiting Saturn, and it looks just like the Death Star; new evidence might shed new light on the mysterious death of Yuri Gagarin, the first man in space; when a cutting-edge satellite vanishes, fears of a space war escalate.

The last humans to walk on the Moon discover something strange on the surface; a NASA scientist investigates a strange phenomenon responsible for horrific mass deaths; a landmark NASA mission threatens to destroy the reputation of an American hero.

Star systems with binary stars, once relegated to science-fiction, may actually exist and serve as ideal places for alien life to thrive.

Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.

Three Portuguese shepherd children allegedly receive a prophecy in 1917 that foretells the date of the Apocalypse.

Investigating the contentious theory that Jesus was married with children and his bloodline lives on today.

Investigating if the High Priests of the Temple in Jerusalem hid sacred items from the Romans, and if the Dead Sea Scrolls can reveal the location of hidden wonders.

Investigating whether alchemists such as Nostradamus, Nicolas Flamel and John Dee could truly perform miracles, or were in actuality just clever deceivers.

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.

Satellite images capture a large compound of abandoned structures that are overgrown with vegetation in Indiana; experts investigate and uncover a derelict WWII munitions factory that played a crucial role in US military history.

Satellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona; experts investigate a highly controversial research facility designed to prepare humanity for life on another world.

Satellite images capture dozens of perfectly straight parallel lines hidden in the dense Polish woodlands; experts investigate and uncover a massive WWII military complex once used as a notorious and deadly Nazi weapons training facility.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

Aerial archaeologists capture a series of mysterious dots buried beneath the remote, frozen landscape of Finnmark, Norway; experts investigate and reveal revolutionary hunting techniques developed by the oldest surviving Norwegian tribe.

Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.

Satellite images capture bizarre structures fenced within a remote mountaintop complex on the Greek island of Kefalonia; experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker.

Aerial archaeologists capture a series of mysterious dots buried beneath the remote, frozen landscape of Finnmark, Norway; experts investigate and reveal revolutionary hunting techniques developed by the oldest surviving Norwegian tribe.

Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.

Satellite images capture bizarre structures fenced within a remote mountaintop complex on the Greek island of Kefalonia; experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker.

Satellite images capture monumental ruins surrounded by bizarre feather-shaped structures on a Welsh mountaintop; experts investigate a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

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

Satellite images capture a large compound of abandoned structures that are overgrown with vegetation in Indiana; experts investigate and uncover a derelict WWII munitions factory that played a crucial role in US military history.

The boys test whether a trench corner can slow down a shockwave and save a soldier.

James Cameron joins Adam and Jamie to try to answer the questions, did Jack (from Cameron'sGuests: James Cameron..

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 try to solve one of aeronautics' biggest puzzles; Kari, Tory and Grant face some of nature's natural-born killers.

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

Jamie and Adam investigate a grenade blast; will consuming diet soda and Mentos rupture a person;s stomach?

Adam and Jamie aim to dispel the myth that one can't teach an old dog new tricks; they make an attempt to teach untrained middle-aged Huskies.

The team goes on the slopes to tackle snow myths; they try to determine if popping a whip can cause an avalanche.

Preserved in the ice of Mexico's highest peak, a group of climbers stumble upon the bizarre, mummified remains of a man in a pinstripe business suit; experts uncover possible drug cartel connections and a plane crash shrouded in secrecy.

A salvage team discovers the mysterious remains of an enormous shipwreck near Cambridge Bay in the icy waters of the Canadian Arctic; experts investigate and uncover a cutting-edge vessel with links to one of the greatest polar explorers in history.

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.

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.

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

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.

A new theory about the sinking of the Titanic emerges; a treeless circle in the middle of the woods is probed; a formation of giant whale bones is discovered sticking out of the ground; researchers study the loudest sound ever recorded underwater.

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.

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

A new theory about the sinking of the Titanic emerges; a treeless circle in the middle of the woods is probed; a formation of giant whale bones is discovered sticking out of the ground; researchers study the loudest sound ever recorded underwater.

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.

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

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.

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.

Testing if a motorcycle can travel across water at high speeds; a parachute made from hotel room contents.

Viewer requested myths include an underwater bike ride, if you can know something.

Celebrity chef Alton Brown helps the team discover if it can cook lasagna in a dishwasher or a meal beneath the hood of a car.

Basque pelota balls; pallet trucks; dumplings; brass faucets.

Laptops; panettone; saxophones.

Exploring the production processes of everyday items, including spinning reels, plasma protein therapies, 3D cups and stainless steel beer kegs.

Steamer baskets; three-wheel scooters; pre-fabricated conservatories; copper cookware.

Aerospace fasteners; cactus pear puree; lab reactors.

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

Hammers; Swiss cheese; roller skates; colored pencils.

Carbon fiber bicycles; blood products; forged chandeliers; ballpoint pens.

Racing shells; stainless-steel sinks; leather; pedal steel guitars.

Swords; pontoons; grandfather clocks; fuses.

Bumpers; lighting gels and camera filters; steam-powered models; candy canes.

Umbrellas; outboard motors; silver cutlery; tape measures.

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.

An international team of paleontologists investigates a 150-million-year-old cold case; fifteen giant dinosaur skeletons lie buried in a remote corner of Wyoming's badlands; the team's mission is to discover why they were here and what killed them.

At a mysterious site in the Gobi Desert, experts discover a monster graveyard; the groundbreaking find contains the treasures of the alien beasts that once lived in this strange world.

An international team of paleontologists investigates a 150-million-year-old cold case; fifteen giant dinosaur skeletons lie buried in a remote corner of Wyoming's badlands; the team's mission is to discover why they were here and what killed them.

At a mysterious site in the Gobi Desert, experts discover a monster graveyard; the groundbreaking find contains the treasures of the alien beasts that once lived in this strange world.

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.

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.

Uncovered documents reveal a black file containing studies of werewolves, sprites and floating orbs; Mike Baker investigates how the U.S. government may have funded a classified program directly focused on the research of paranormal phenomena.

In 2013, the USS Jimmy Carter deployed on a classified mission that received a presidential citation of heroism.

Newly declassified documents reveal the details of a top-secret government program created in the wake of the Kennedy assassination to go to extreme lengths to protect the president; a former CIA operative exposes cutting-edge defenses now in place.

The solar system hides a dark and violent past, and new discoveries reveal that Earth and the planets were formed from the destruction of strange alien worlds.

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.

Heading to California to investigate a network for major fault lines that could set off an unprecedented mega-quake; he explores a mysterious sinkhole that some believe is an endless pit to the center of the Earth.

Investigating the mysterious pattern of rocks at the bottom of Lake Michigan known as Underwater Stonehenge; at the notorious Alcatraz prison, Rob uses state-of-the-art technology in search of rumored escape tunnels.

Investigating a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus; heading to California where a dormant super volcano may be showing new signs of life.

Exploring mysterious tunnels beneath Denver's airport, capitol building and downtown to investigate rumors of a secret organization that operates below; in Ohio, trying to uncover the ancient secrets of a giant mound shaped like a serpent.

Hunting for a legendary mass grave that could expose a dark secret of America's industrial past; using cutting-edge technology to find out why a giant lake is mysteriously disappearing high in the mountains.

Examining a set of bizarre markings that suggest a violent clash between prehistoric beasts; in California, Rob investigates to see if a strange lake is a home to alien life.

Investigating rumors of a secret underground escape route used by the infamous gangster Al Capone; trying to uncover who or what built a vast landscape of earthen mounds in Washington state.

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

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

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.

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

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.

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.

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

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.

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

Examining a set of bizarre markings that suggest a violent clash between prehistoric beasts; in California, Rob investigates to see if a strange lake is a home to alien life.

Investigating rumors of a secret underground escape route used by the infamous gangster Al Capone; trying to uncover who or what built a vast landscape of earthen mounds in Washington state.

Presidential Emergency Action Documents have the potential to grant the U.S. president unlimited authority; Mike Baker investigates how these files are among the most secretive documents in U.S. government and what might trigger their use.

Many U.S. government personnel have reported sustaining unexplained and debilitating neurological injuries while working abroad; Mike Baker investigates if these invisible, mind-altering attacks are evidence of active mind-control programs worldwide.

A former CIA operative investigates newly declassified documents that reveal the secrets of a multibillion-dollar mission to build a real-life Iron Man equipped with superhuman strength, cutting-edge weapons, and telepathic abilities.

Cosmologists say there are black holes throughout the Universe, but they've never seen one and it's almost impossible to study them directly.

Our solar system is home to hundreds of strange, tiny worlds called dwarf planets, and new discoveries reveal the secrets of these mysterious places.

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.

An ancient tablet discovered on the remote reaches of Easter Island is etched in a mysterious glyph system that has yet to be deciphered; experts use cutting-edge tech to determine if this wooden relic could be the key to a lost civilization.

A bizarre find called Copper Scroll is one of the famous Dead Sea Scrolls, but it's unlike any of the others; this strange relic might hold clues to a long-lost treasure, and cutting-edge science may finally reveal answers to this mystery.

An ancient piece of corroded metal is more than it seems: an alien-looking device of intricate dials and cogs; using cutting-edge imaging technology, experts examine what could actually be a 2,000-year-old computer.

A mysterious 2000-year-old jar containing copper and iron may be the most controversial archaeological find of all time.

The jeweled-encrusted pectoral of King Tut is a hieroglyphic artifact of stunning craftsmanship and one of the greatest treasures of the pharaohs.

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.

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 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.

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.

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.

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.

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.

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.

A mysterious 2000-year-old jar containing copper and iron may be the most controversial archaeological find of all time.

The jeweled-encrusted pectoral of King Tut is a hieroglyphic artifact of stunning craftsmanship and one of the greatest treasures of the pharaohs.

In the aftermath of the 9/11 attacks, a series of secret meetings were reported between US military brass and Hollywood filmmakers.

An image of a pilot donning a Red Eagles patch is captured by photographers during a mysterious fighter jet training exercise; Mike Baker investigates if the U.S. Air Force has revived a black file squadron.

A former CIA operative investigates new evidence of a top-secret group known as the Nightstalkers, a clandestine team of the world's best aviators involved in the assassination of Osama Bin Laden and other dangerous black ops.

Star systems with binary stars, once relegated to science-fiction, may actually exist and serve as ideal places for alien life to thrive.

Uranus and Neptune are mysterious, icy worlds at the edge of the solar system; new discoveries reveal that these strange planets may have helped start life on Earth.

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.

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.

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.

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.

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.

America's transcontinental railroad helped transform the United States into a global superpower; cutting-edge engineering is behind high-tech railways to once again revolutionize travel from sea to shining sea.

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 construction of a new parking garage at a luxury waterside condo turns disastrous as it collapses in Jacksonville, Fla.; experts use the latest tech to investigate and uncover critical design flaws and unsupported lower levels.

Residents along the Pacific Coast Highway are cut off from the outside world after a storm causes a bridge to buckle; experts reveal how the construction method of the old concrete bridge left it vulnerable to erosion on the steep coastline.

On a snowy morning in Pittsburgh, a messy commute becomes dangerous after a bridge collapses; an investigation reveals how corrosion and other environmental factors helped bring down this decades-old structure.

In Puerto Rico, an iconic observatory nestled into a giant crater has to close after cables holding up a critical platform come crashing down; experts analyze the cumulative effects that led to the collapse of this awe-inspiring structure.

A deadly explosion strikes a major crude oil port creating an inferno of epic proportions in Corpus Christi, Texas; experts use the latest science to investigate and uncover a failed dredging operation that ruptured a propane pipeline.

A perfect storm with tragic consequences strikes as flood waters rip away a major highway crossing in Huron, Calif.; experts use the latest tech to investigate and reveal bridge scouring with unsupported concrete columns exposed for failure.

In Puerto Rico, an iconic observatory nestled into a giant crater has to close after cables holding up a critical platform come crashing down; experts analyze the cumulative effects that led to the collapse of this awe-inspiring structure.

A deadly explosion strikes a major crude oil port creating an inferno of epic proportions in Corpus Christi, Texas; experts use the latest science to investigate and uncover a failed dredging operation that ruptured a propane pipeline.

A perfect storm with tragic consequences strikes as flood waters rip away a major highway crossing in Huron, Calif.; experts use the latest tech to investigate and reveal bridge scouring with unsupported concrete columns exposed for failure.

On a snowy morning in Pittsburgh, a messy commute becomes dangerous after a bridge collapses; an investigation reveals how corrosion and other environmental factors helped bring down this decades-old structure.

America's transcontinental railroad helped transform the United States into a global superpower; cutting-edge engineering is behind high-tech railways to once again revolutionize travel from sea to shining sea.

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.

Unidentified black triangles have been reported in flight over top-secret military bases for decades, and now, Mike Baker investigates if the US government is involved in developing experimental aircraft, or if this could be something otherworldly.

Former CIA operative Mike Baker investigates top-secret government programs steeped in cutting-edge science; Mike speaks with experts, government officials and scientists to go deeper into the black files than ever before.

Declassified documents reveal that the U.S. Space Force is the culmination of decades of top-secret military programs to weaponize the cosmos; special access exposes the cutting-edge weapons and sci-fi defense systems behind real-life star wars.

Quasars are the brightest and most powerful objects in the universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists.

Experts utilize the latest science and discoveries to investigate the cause of the Milky Way galaxy's gradual death.

For years, scientists suspected that the oceans came from molecules delivered to Earth from distant stars by asteroids, but a new discovery suggests that their true origins may be more exotic.

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.

The wreckages of three German U-boats are eroding at the bottom of the sea along with the stories behind their disastrous fate; now, a team of maritime archaeologists race to locate the submarines and solve the mystery behind their deadly demise.

The enigmatic shipwrecks of El Faro and the Empress of Ireland occurred a century apart and both remain a mystery of the sea; armed with the latest technology, experts explore these doomed ships to discover what set them on the path to catastrophe.

Three historical collisions expose the volatile risks at sea and how they have shaped the technological advancements of today; now, maritime researchers explore the remnants of these shipwrecks to uncover what happened in their fatal, final moments.

A secret Russian military base in the Gobi Desert; a strange complex in an American wasteland; a relic high atop a mountain.

A strange Cuban prison, an eerie escape route built for Armageddon, and an underwater marvel that changed history are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

An alien Nazi structure that changed history, a strange Soviet monolith known as the Tower of Death, and a concrete ocean giant are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

An American ghost town in the Amazon jungle, a secret Nazi base, and a deadly concrete fortress 866 miles long are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A strange, deserted city in America's heartland, a gigantic wall deep in snowcapped mountains, and a mysterious top-secret Soviet facility are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A strange alien shrine on a mountain peak; a bridge built in the Alaskan wilderness; an American castle with a dangerous secret.

An American ghost town in the Amazon jungle, a secret Nazi base, and a deadly concrete fortress 866 miles long are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A strange, deserted city in America's heartland, a gigantic wall deep in snowcapped mountains, and a mysterious top-secret Soviet facility are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A strange alien shrine on a mountain peak; a bridge built in the Alaskan wilderness; an American castle with a dangerous secret.

An alien Nazi structure that changed history, a strange Soviet monolith known as the Tower of Death, and a concrete ocean giant are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

The enigmatic shipwrecks of El Faro and the Empress of Ireland occurred a century apart and both remain a mystery of the sea; armed with the latest technology, experts explore these doomed ships to discover what set them on the path to catastrophe.

Three historical collisions expose the volatile risks at sea and how they have shaped the technological advancements of today; now, maritime researchers explore the remnants of these shipwrecks to uncover what happened in their fatal, final moments.

A top-secret aviation program funded by a mysterious money trail could have built a plane that can travel nearly 4,000 mph; a former CIA operative investigates how these superplanes will revolutionize flight and unleash a new lethal technology.

A top-secret government program might have proof that aliens have visited Earth; a former CIA operative uses newly declassified documents and special access to investigate if the US military already has its hands on advanced, alien technology.

Neutron stars are strange and violent phenomena that defy the laws of physics, and new discoveries reveal that these bizarre nightmares are far more deadly than previously believed, with the power to destroy planets and even other stars.

Scientists use cutting-edge technology to stop an asteroid apocalypse; mankind comes closer to keeping Earth safe from killer space rocks.

Mercury is a deadly world, facing attacks from the Sun, comets, and other planets; even though it's the smallest planet in the solar system, Mercury has a dangerous secret that may one day threaten life on Earth.

Actor Peter Stormare teams up with a history enthusiast to investigate a mysterious relic that could be evidence of Viking settlement in America centuries before Columbus, but some think it's a hoax.

Actor Peter Stormare and historian Elroy Balgaard investigate the man accused of forging evidence of Vikings in America, testing a crucial piece of evidence with DNA analysis: an ancient skull that may have alien origins.

Peter Stormare and Elroy Balgaard arrange to meet a man with knowledge of the runestone at a secret location where he has something important to show them.

A forensic geologist informs Peter and Elroy of new, advanced testing that could verify the authenticity of the runestone, but a new challenge might put the investigation in jeopardy.

Peter and Elroy have been setting up an archaeological survey at their most promising site, but just as they prepare to dig, the state archeologist shuts down all their plans.

Peter and Elroy gain access to runestone samples for the forensic geologist to conduct testing, and they meet with a team that finds metal artifacts buried at the site where the runestone was discovered.

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 triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

Aerial drone imaging captures oddly shaped industrial-sized towers mysteriously situated in a forest clearing near Moscow; experts investigate a lost Soviet era military compound and the development of a catastrophic electromagnetic weapon.

Satellite images capture an enormous X shape mysteriously carved with precision in the remote Nevada desert; experts investigate a military emergency landing field linked to one of the most astonishing test programs in aviation history.

Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Satellite images capture miles of aircraft precisely arranged in the vast Arizona desert; experts investigate the largest aircraft storage facility on Earth and the rotting remains of a defining moment in Cold War history.

A ghost ship appears overnight on the shores of Ireland; it may help shed light on the fate of vessels claimed by the most notorious patch of ocean on earth.

Satellite images capture two conjoined circular structures embedded in the landscape of Ireland; experts investigate an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Satellite images capture miles of aircraft precisely arranged in the vast Arizona desert; experts investigate the largest aircraft storage facility on Earth and the rotting remains of a defining moment in Cold War history.

A ghost ship appears overnight on the shores of Ireland; it may help shed light on the fate of vessels claimed by the most notorious patch of ocean on earth.

Satellite images capture an enormous X shape mysteriously carved with precision in the remote Nevada desert; experts investigate a military emergency landing field linked to one of the most astonishing test programs in aviation history.

Peter and Elroy gain access to runestone samples for the forensic geologist to conduct testing, and they meet with a team that finds metal artifacts buried at the site where the runestone was discovered.

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.