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

Medicinal spa created with the discharge from a geothermal energy plant.

Notorious artist squat renovated into legal studios.

The fairy tale castle of the "fairy-tale king."

Try not to get slimed in Tribeca.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A bizarre house filled with an astounding array of collections.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

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

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

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

A church of bones, decorated with 40,000 human skeletons.