An abandoned Jazz Age dream home and con man's hideout in Death Valley.

Abandoned Air Force base that has fallen into disrepair.

A decommissioned Naval base now rents itself out for people who want to blow stuff up.

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A strange house built only at night, with rumored mystic inspiration.

Secret Manor, a house full of legends, the least of which is the haunting of long-deceased ladies of pleasure.

One of the ghostly stops along Route 66.

The liveliest ghost town in the state.

An abandoned convention space that has been left to the homeless and the radical.

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

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

Built by the inventor of the radio, this abandoned hotel has housed early radio employees, military men, and a dangerous cult.

Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

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

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

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

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

An abandoned boat that's been stranded mysteriously for decades.

A ghost town originally established and governed solely by Black Americans seeking a place of their own, free from discrimination.

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

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.