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

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

A shockingly detailed small scale recreation of the temples of Abu Simbel.

Home of what was the largest hydraulic mine in the world, producing gold and the first diamonds in the U.S.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

This remarkably simple jail went over a century without an escape.

This Southern Californian Conservation Center is home to singing and howling apes.

This hidden amusement park is a magical escape for kids and kids-at-heart.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.

Shoot for par over the bodies of the dead on this cemetery-cum-golf course.

Nestled in Coachella Valley, this museum transports guests from the Mesozoic Era, to the land of Egyptian kings.

A strange mishmash of ruins and abandoned structures hint at the park's many lives.

Once the central jail for Los Angeles, this building housed inmates like Al Capone, those arrested from the Zoot Suit and Watts Riots, and individuals imprisoned for their sexuality.

A unique market that brings together various goods and cultures.

In the days before HD projectors and IMAX, some of the most powerful projectors belonged to planetariums.

Inspiring Earthlings to Boldly Go.

A lighthouse built to save lives that took quite a few with its treacherous location.

This hidden fire lookout offers spectacular views of Sequoia National Park.

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

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

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

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

An unexpected and peaceful oasis on a hillside.

This California estate was either haunted by ghosts or the Marx brothers.