Recently discovered documents show NASA's secret plan B for failure of the first moon landing; a Soyuz capsule carrying NASA astronaut Peggy Whitson back to Earth goes missing; NASA's Cassini mission unravels a three hundred year old.
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.
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.
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.
An unprecedented landslide unveils a hidden world beneath a picturesque town in northern Italy, and now experts investigate this vast network of tunnels and passageways that stretch 300 feet underground to reveal the city's subterranean past.
When a massive spider's web takes over a park, experts investigate if this monster's trap could capture a human. A tree spurts out thick red blood, and some believe it could be an undiscovered species of carnivorous plant.
When a mysterious fog and a huge explosion strike at once, some suspect a napalm attack on American soil, but using cutting-edge tech, experts find that the truth could be more dangerous than ever imagined.
A bizarre Civil War outpost lies deserted among a quiet holiday village on a San Francisco Bay island; experts investigate and uncover a collection of military defensive structures that conceal a dark and brutal past.
The remains of a decaying palace constructed in the middle of a lake is now mysteriously deserted in the Loire Valley of France; experts investigate and uncover a once opulent chateau whose owner was labeled a traitor by France's most notorious king.
A derelict ghost town shows a curious revitalization along an iconic highway in the Mojave Desert; experts investigate and reveal a once thriving and bustling Route 66 stopover that's being resurrected into a historic Americana destination.
A historic sea vessel once considered the pinnacle of American engineering now rusts in the Delaware River; experts investigate the fastest passenger liner ever constructed and a masterpiece of marine architecture that doubled as a US warship.
Discoveries reveal what really happened at an abandoned industrial complex on the shores of Lake Michigan that was once a top-secret military compound.
An massive, alien-like fortress built into a mountainside is the central node to a network of pipelines that race outwards like tentacles; behind-the-scenes access reveals the secrets of why this strange complex was built and why it was abandoned.
Abandoned towers in southern Greece are the ruins of a fearsome warrior civilization descended from the Spartans, and new discoveries reveal the role these towers played during generations of violent blood feuds among the clans that lived here.
An abandoned castle is the site of hundreds of horrific murders perpetrated by the mysterious countess who once lived there, a woman alleged to be one of the most prolific killers in history; new discoveries reveal what really happened here.
A strange bunker in a treacherous landscape once belonged a notorious dictator who's paranoid fantasies drove bizarre and elaborate feats of engineering; new discoveries reveal the secrets of these structures and why the nightmares that built them.
An eerie set of buildings in Paris is evidence of an unspeakable evil; new discoveries reveal the horrific things that happened here, and why they were abandoned.
Abandoned towers in southern Greece are the ruins of a fearsome warrior civilization descended from the Spartans, and new discoveries reveal the role these towers played during generations of violent blood feuds among the clans that lived here.
An abandoned castle is the site of hundreds of horrific murders perpetrated by the mysterious countess who once lived there, a woman alleged to be one of the most prolific killers in history; new discoveries reveal what really happened here.
A strange bunker in a treacherous landscape once belonged a notorious dictator who's paranoid fantasies drove bizarre and elaborate feats of engineering; new discoveries reveal the secrets of these structures and why the nightmares that built them.
An eerie set of buildings in Paris is evidence of an unspeakable evil; new discoveries reveal the horrific things that happened here, and why they were abandoned.
A derelict ghost town shows a curious revitalization along an iconic highway in the Mojave Desert; experts investigate and reveal a once thriving and bustling Route 66 stopover that's being resurrected into a historic Americana destination.
A historic sea vessel once considered the pinnacle of American engineering now rusts in the Delaware River; experts investigate the fastest passenger liner ever constructed and a masterpiece of marine architecture that doubled as a US warship.
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This product uses the TMDb API but is not endorsed or certified by TMDb.