A porcelain company's former dumping ground, completely covered in pieces of collectible ceramics.

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

The southernmost outpost of the Russian Empire in colonial America.

The remains of a deserted steamboat sit rusting beside an old ferry pier and an abandoned train platform.

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

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

This abandoned boat was left in place thanks to its rotting beauty.

This odd California folly seems like it was almost designed to accumulate urban legends.

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

The former Naval shipyard is open for exploring - mostly.

The oldest Naval cemetery on the West Coast.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.