This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

This floating cinema brings new meaning to the phrase "going out" to the movies.

Gold Rush-era tombstones line the park's paths.

There's nothing creepier than a cemetery next to a clown motel.

Not one, not two, but three natural bridges remain in this captivating spot post-sinkhole.

A house built from trash known as the poor man's Hearst Castle.

Colorful and chaotic stacked hotel in North Holland.

A massive sea stack famous for its appearance in The Goonies.

Once defending the city of New Orleans from invasion by sea, this fort faces an uncertain future.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

Fossils, railroads, and waterfalls!

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

A naturally beautiful, seemingly bottomless deep blue spring.

Starship-temple contains 400 tons of drinking water and offers free Japanese lessons.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

A cave dwelling that was started by the Celts, expanded by monks, and finished by knights.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

An abandoned asylum where patients have been forgotten but their possessions remain.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

Tour the original street level of Port Angeles, buried underground in 1914.