This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

Rising from the sea like a stone monster.

The first declared National Monument in the United States.

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

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

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

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

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

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

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

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

Northern Ireland's Brobdingnagian stepping stones.

A seemingly endless landscape of pure salt stretches far across Bolivia.

Stunning wetlands ablaze with pink lotus flowers.

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

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

Famously misunderstood wonder of the ancient world

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

A hand-built folk art installation covered with messages of God's love.

Site of a former hidden treehouse in New Orleans.

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

The seamy, underground secrets of Portland's criminal past.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

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