This massive redwood tree has a hole in the base big enough to drive through.

An unfortunate geological resemblance to Satan has labeled this Pasadena gorge as a passage to the underworld.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Magical-looking cottages that inspired one of the most famous animated films ever.

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

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

A common entry point to the Griffith Observatory trail holds its own wonders.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Canyon walls shrouded in ferns.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

A meditative space out of a fantasy story.

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

A hotel and restaurant serving as the mecca of kitsch.