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

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

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

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

A huge musical instrument played by the ocean.

A psychedelic labyrinth on the San Francisco bay.

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

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

This drive-by, rotating mini-gallery is nestled in the suburbs of Colorado.

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A technicolor place of worship for Elevationists.

For those going through a life transition, a place to leave behind a piece of your former self.

A Tucson museum and performance space full of found-object movable sculptures.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

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

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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This sculpture perfectly models the molecular structure of a drug that was never produced.

Recycling meets art in this colorful barricade.