A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A submerged archeological park still holds the wonders of a Roman Sodom.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Medical and zoological curiosities for sale.

The only theatre in the world constructed specifically for sound movement.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

An abandoned castle owned and ignored by Masons carries a cursed history.

Odd outsider art installations surround a Gold Rush-era ghost town.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Two stunning 17th-century libraries and a cabinet of curiosities.

Site of a former hidden treehouse in New Orleans.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

Famously misunderstood wonder of the ancient world

A strange house built only at night, with rumored mystic inspiration.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.