A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

A multimedia experience that chronicles the atrocities of racism.

The site of murders and Satanic cult gatherings.

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

Abandoned bridge hidden deep in the San Gabriel Mountains.

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

The last of its kind in the country.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

A ghost town at the airport is now a refuge for blue butterflies.

Visible below the waves are memorials to the city's Gold Rush dead.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

Towering basalt columns, a creation of fire and ice.

Its buzzing collection honors vibrator history.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The only theatre in the world constructed specifically for sound movement.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

One man's homage to the sun continues to grow like a glass fractal.

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

A 140-year-old castle with underground caves hidden in San Francisco.