A porn baron dreams up a hedonistic paradise to avert nuclear catastrophe.

Half-built castles stand as a whimsical reminder of a neighborhood that was supposed to feature thermal baths and panoramic views; the ambitious project came to an abrupt halt when the construction company began to face financial difficulties...

A Beatles legend builds a state-of-the-art studio on a Caribbean island.

This spooky, unfinished amusement park serves a different purpose nowadays.

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

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

Graffiti scratched into the walls of a military base on the British coast sheds light on a secret raid against the Nazis.

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

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

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.

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

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

A teenage girl in Korea is martyred in prison and becomes a national hero; the facility where she was held stands in remembrance of her bravery and the Korean struggle for independence...

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

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

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