A mysterious "wedding cake" castle in the middle of the urban desert.

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

The original "capsule building" is a masterpiece of Metabolist architecture.

A hotel and restaurant serving as the mecca of kitsch.

This classic restaurant features a gorgeous mirror-clad room.

The atmospheric road was never meant to be so creepy.

Stroll through a wonderland of stupendous moss-covered trees.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A taste of the macabre Tokyo's ritzy shopping district.

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

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

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

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

A snapshot of the city's fascinating voodoo culture.

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

An eerie, derelict amusement park in Berlin.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A psychedelic labyrinth on the San Francisco bay.

A hidden art gallery in an abandoned Warsaw fort.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.