An abandoned town in the Nevada desert is the ruins of an American Atlantis, destroyed by catastrophic floods when the Hoover Dam was built; experts investigate the secrets of this eerie ghost town as water levels recede and the city reemerges.

Remains of a grand vision become a symbol of excess in the Turkish capital.

Notorious gunslinger John Dillinger once pulled off a daring escape from this unassuming jail.

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.

The world's strangest ghost towns are home to dark secrets, creepy buildings and eerie sights; new discoveries reveal why they were abandoned.

Deserted buildings are evidence of a city’s lost industrial past.

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

A mysterious town in South Africa is deserted, even though it was once a booming community; experts reveal the cataclysm that caused the people of this once-prosperous town to suddenly leave and never come back.

An abandoned theme park is home to secrets of a forgotten, imaginary world.

A building in Colorado is still marked with bullet holes from a Wild West shootout between union members and state militia.

At an infamous prison in the Amazon, dangerous criminals faced hard labor, a hostile environment and death by guillotine; today, it's deserted and new discoveries reveal why this hellish compound was built and abandoned.

Eerie ghost ships stranded in an alien desert, sinister ruins known as the Dragon's Teeth, and a ghostly complex with a bloody past are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A haunted prison with a terrifying past once housed America's most notorious criminals, but today, the fortress stands in ruin, and experts reveal evidence of ghostly secrets hidden in the crumbling jailhouse walls.

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.

This fortress once stood between the Ancient Roman and Persian Empires.

New discoveries reveal how an unfinished Nazi fortress was built.

The ruins of a dreamlike Polish palace hide an astonishingly dark history that's shrouded in mystery to this day; experts investigate and uncover an ornate gothic structure that concealed a nightmare of Nazi experimentation.

Experts investigate bunkers that conceal a deadly nuclear secret.

A serene institution in the American Midwest, seized in righteous anger, a subterranean lair in France designed with a disturbing objective, a Spanish settlement concealing a story of forbidden love and ruthless retribution.

An old compound in Texas bears the scars of a violent revolution and a secret facility outside Berlin is used by a dictator to escape justice.

In the former Soviet Union, this theater and others like it were used to influence the minds of the masses.

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

A place of hope in the Czech Republic quietly perseveres in the age of Nazi tyranny, a Moroccan politician sides with the French and an eco-friendly paradise in the Amazon proves to be unsustainable.

A Polish castle becomes entwined in the hunt for lost Nazi treasure, the heir of an American business tycoon gets caught in a web of controversy and an Irish estate is embroiled in a fight for freedom.

On a desolate island near Greece, abandoned buildings are evidence of a group of people that were forbidden to leave; experts reveal who was forced to stay here and if there was a cover-up to conceal what really happened at this strange place.

A one-time fairytale castle is rumored to be haunted; experts investigate the secrets and ghostly stories of this eerie fortress.

On a picturesque island off the coast of Brazil, this penal colony was once the site of a dramatic prisoner uprising.

An elaborate stadium in Lithuania hosts an unlikely Cold War matchup and an industrial relic in England gets caught in a heated labor dispute.

An underground labyrinth can warp the mind and turn friend into foe.

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.

In modern-day Turkey, on the coast of the Aegean Sea, archaeologists discovered hilltop ruins that are believed to be the site of one of the world's most enduring stories.

A ghost ship thousands of miles away from where anyone expected, a bridge to nowhere in Florida's Hurricane Alley, and a haunting mountain complex with a bloody secret are deserted engineering projects; new discoveries reveal why they were abandoned.

An entrance to the underworld in the American wild, a haunting Soviet underwater prison, and a strange complex of towers in a forest of ice are deserted engineering projects; new discoveries reveal how they were built and why they were abandoned.

A war-torn Italian ghost town immortalized by a legendary Hollywood director blurs the lines between fiction and reality; experts investigate and uncover a forgotten landscape of ruins captured in a WWII documentary.

A terrifying sea fortress, a highway in the Amazon that suddenly vanishes, a mysterious structure in the shadow of the Statue of Liberty are deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A vast network of subterranean bunkers in the American west was home to the power to destroy nations, but today, this facility is deserted, and new discoveries reveal why this eerie place was built and why it was abandoned.

Look at a New Jersey complex that once housed a military lab targeted by Soviet spies; examine a scarred Welsh coastline exploited for building materials; trek to a Greek WWII disaster site and a Peruvian palace with a dark secret.

Conspiracies swirl around an abandoned military base in Long Island, where it's alleged that covert government experiments took place underground.

Experts investigate the ruins of a spy’s former battlefield.

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.

Tunnels filled with human bones lie beneath the streets of Paris, and this horrifying engineering marvel points to a dark secret; new discoveries reveal why this grisly underground death maze was built and why it was abandoned.

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.

Ruins of an imposing mental health institution lie deserted in Scotland.

An abandoned industrial complex by Lake Michigan was once a top-secret military compound that protected America from enemy attacks; new discoveries reveal what really happened here and why the government turned its back on this juggernaut.

The world's abandoned structures hold new evidence about the lives and deeds of history's greatest heroes and villains, and using the latest discoveries at these mysterious sites, experts count down the ten most significant.

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

Nazi towers in Berlin, defended to the bitter end by child soldiers; a Chicago institution, once the largest of its kind in the world; an eccentric vision in the Malaysian jungle; and a complex in San Francisco, born from the ashes of tragedy.

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

The bizarre remnants of a housing complex lie mysteriously deserted in an Ohio industrial town; experts investigate and uncover the dark, turbulent past of an oppressive steel company and labor strikes that resulted in deadly riots.

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

A 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.

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

An iconic Philadelphia venue that set the stage for era-defining artists; a French compound, where a staggering deception was launched; and a Malaysian mansion, the scene of a baffling crime.

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

The remnants of a desolate ghost town are uncovered in Azerbaijan.

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

A once majestic theater now lies mysteriously derelict in Cleveland.

Palatial ruins in Philadelphia symbolize an industrial golden age, a remote outpost in France is thrust to the frontlines of World War II and a palazzo right off the Italian coast becomes a prison for mob bosses.

An island of dense jungle is home to an abandoned complex with a dark past of bloodshed and rebellion, and new discoveries at this deserted place reveal why it was built and the gruesome circumstances of its downfall.

The remains of rocket testing facility lie in the Florida Everglades.

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.

The bizarre remains of an Old West mining town lie mysteriously deserted high in the mountains of Maggie Valley, North Carolina; experts investigate and discover an abandoned ghost town theme park that some local residents believe carries a curse.

An eerie ghost village in west-central France, Oradour-sur-Glane, appears as if it were mysteriously abandoned and destroyed all at once; experts investigate and uncover the remains of a derelict settlement left as a memorial to a murderous WWII Nazi raid.

The haunting remains of an isolated ghost town high in the Colorado mountains suggest a once booming mining community left in devastation; experts uncover an inhospitable land of shattered dreams where fortune seekers chased the American dream.

Experts investigate the deadly legacy of an abandoned sea fort.

A forgotten military fortification lies hidden in the Rock of Gibraltar.

A luxurious skyscraper in Bangkok is now an eerily derelict ghost tower.

The ruins of a historic Scottish castle is now a bewitching wilderness of hidden dangers with deadly booby traps obscured afoot; experts and historians reveal a bygone Second World War military hospital with bizarre ties to an infamous Nazi occupant.

A facility housing two enormous satellites stands derelict in Georgia.

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

In Michigan, a top-secret military base embroiled in an unexplained disappearance; an Italian wonderland, shattered by links to the Mafia; a California transportation hub that inspired lasting change; and a Croatian complex drawn into a brutal conflict.

A legendary US Naval war vessel now stands as a monument to space exploration in Alameda, California; experts investigate and reveal how a formidable WWII aircraft carrier served a vital roll in historic Apollo spaceflight recovery missions.

The ruins of a coastal fortress sit atop a jagged outcrop along the beaches of Wales; experts investigate and uncover a derelict 19th-century British fortification that housed a series of occupants, including an exotic, private zoo.

Inspect a Scottish site that became a military flashpoint; an Oklahoma ruin where Native American cultural genocide took place; look inside a crumbling Greek house of horrors and an Oregon military facility that once battled an imaginary enemy.

A castle with an eerie attraction stands derelict in the Czech Republic.

A strange bunker near the Kennedy Space Center once served a top-secret military function should doomsday ever come to the Sunshine State; experts use declassified intel to reveal the sinister purpose of this forbidding facility and why it was abandoned.

An alien Stonehenge with a sinister purpose, an eerie building filled with strange labyrinths, and an endless concrete track in the middle of nowhere are deserted engineering projects, and new discoveries reveal why they were abandoned.

A desert island contains a marooned structure with a contagious past.

Formerly known as one of the toughest prisons in America, this massive complex was once home to medical experiments and a chaotic hostage situation.

In a California desert, a once glittering Hollywood hotspot gets converted into a top-secret interrogation center for POWs.

Unearth a wartime nerve center in Dover that made the UK proud, then visit a mansion caught in the crosshairs of the Civil War. Dig up an Estonian ruin's connection to Catherine the Great and explore the arena where Joe Louis boxed his way to fame.

In a remote Louisiana swamp, the ruins of a massive industrial operation suggest that something evil once happened here, and new discoveries at this eerie site reveal what these abandoned buildings were for and why they were deserted.

Experts reveal 10 of the world's most iconic abandoned places.