A European-style bath house in Chicago.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A monument to the art of slicing people open.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

These pretty kitties killed and ate as many as 135 railway workers.

A Museum of Holography frozen in 1974.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Rare karst landscape eroded from a flat seabed.

One of the best beaches in the entire world.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

A celebration of capitalism in Midtown.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

An homage to everyone's favorite prehistoric cartoon family.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

The biggest solar telescope in the world helps reveal the secrets of our sun.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Outsider Art Community.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The abandoned personal amusement park of the King of Pop.

The location of the last stand of Charles Manson's doomsday cult.

This golf ball–shaped former desert real estate office now houses a UFO museum.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

A former utopian healing center created by a huckster and built by derelicts.