A stealthy Apache hideaway that became the haunting site of a mass grave.

Although now a decaying ruin, this stone cabin's history includes several notable figures.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

This sanguine boulevard was named after a deadly cowboy bar fight.

Abandoned landscape once home to "the world's largest winery."

Where a staggering 747 ships were constructed during World War II.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

Its buzzing collection honors vibrator history.

San Francisco's newly reopened hands-on science museum.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

The most beautiful Taco Bell in the world even has surfboard parking.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

Here, visitors can swing with the waves of the Pacific Ocean.

After the nearby mercury mine shut down, this town was abandoned and declared a Superfund site.

A fake town founded by Western movie stars is now becoming a hip desert community.

This old mining town, deep in the California desert, has a year-round population of one.

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

Factory that once supported an entire company town of 350.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

Acres of natural wonders left behind by a socialite-turned-gardener.

The ruins of the castle that chemicals built.

Once the central jail for Los Angeles, this building housed inmates like Al Capone, those arrested from the Zoot Suit and Watts Riots, and individuals imprisoned for their sexuality.