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

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

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

A lawless town deep in Death Valley was famous for its riches and death rate.

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

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

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.

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

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

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