The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

The Internet Age began with a transmission from this biker bar.

Abandoned in 2009, this once popular resort destination now stands frozen in time.

Tucked away behind an unassuming set of shops is a must-see series of stunning murals.

Peek inside this sandy mailbox and you'll spot kids' letters to Santa.

A sculpture dedicated to Napa Valley's oldest mineral water company.

Where decommissioned airplanes and helicopters go to become part of Hollywood.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Sports history, made in the Arroyo Seco.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

One of the largest fleets of armored vehicles in the world, sitting out in the California desert.

This large pile of traveler-curated rocks by the dry lakebed is a longstanding tradition on the Old Mojave Road.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

Factory that once supported an entire company town of 350.

The set location for a 1987 cult classic draws international film buffs to the middle of the Mojave Desert.

It is locally loved and ridiculed for literally looking like poop.

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

Everything you always wanted to know about borates is here.

Each winter this underground cave forms a dazzling ice palace.

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

A huge work of Burning Man-inspired outsider art on the grounds of a California winery.

One of the only known surviving coconut palm trees in the entire state.

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

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.