An Australian lake whose pink hue defies scientific explanation.

A meditative space out of a fantasy story.

The only thing stranger than stumbling onto these philosophical musings is the story of the homesteader who created them.

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.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

An enormous, inside-out glass globe built in 1935.

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

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

A psychedelic labyrinth on the San Francisco bay.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

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