Odd stone and concrete monuments in the "Poet of the Sierras" eclectic folly garden.

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

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Abandoned Air Force base that has fallen into disrepair.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

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

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

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

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.

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.

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.

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.

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

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

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

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.

The overgrown ruins of a once thriving World War I-era copper mine.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.