A meditative space out of a fantasy story.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

In this century-old literary safehouse, print is alive and well.

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

Factory that once supported an entire company town of 350.

One of the most unusual geological features, recognizable from a dozen hit movies.

Remnants of the United States's largest accidental oil spill still mar a California valley.

Exotic feline breeding compound and conservation center.

The liveliest ghost town in the state.

This impressive tunnel was dug entirely by hand over the course of 36 years.

Salt is slowly eating away this abandoned saltworks town in the desert.

Abandoned hotel with adjacent lake and golf course.

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

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

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.

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

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

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

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

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

The ghost town that ended up on Ebay.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.