A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

This black shoreline is made up of exploded lava particles.

The most alien-looking place on Earth.

The central mosque of this Mali town is entirely built from mud.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

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

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

The Uros people live on floating reed islands in lake Titicaca.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The largest stone moai on Rapa Nui.

An intricate and amazing house built by architect Karl Junker.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

One man's ambition created this psychedelic log home.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.