One of the largest helium balloons in the U.S. is a 112-foot ginormous orange.

A natural history wunderkammer in the middle of the desert.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

The fading, forgotten remains of a once bright and booming factory.

The world's largest military aircraft cemetery.

Miniature art that tells an enormous story.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

A small medical museum with a recreated doctor's office.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

An isolated dive site teeming with cnidarians.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

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

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

An old California photo stand has been turned into a shrine to the cozy art of crochet.

Semi-recognized center of the world, with many oddities.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The rocks in this arid basin leave trails of movement behind them.

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

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

The art and history of the velvet painting are on full display in this Los Angeles museum.

Peek through a transparent pyramid and drink in the mountain made of books.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

A bizarre house filled with an astounding array of collections.