This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

A bizarre house filled with an astounding array of collections.

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

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

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Dramatic river bend surrounds a natural red-rocked pedestal.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

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

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

The world's only museum devoted to the wonders of fluorescence.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

France's most famous cemetery, with some of its most curious tombs.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A snapshot of the city's fascinating voodoo culture.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

World's largest collection of serial killer artwork and other macabre exhibits.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A haunting, yet lovingly hand-hewn potters' field full of graves that flood with each heavy rain.