California's own majestic geyser is powered by a subterranean volcano.

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

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

Educational foundation that teaches the powers of fourth dimensional physical properties.

Where NASA's satellites and rovers phone home.

The only visible piece of San Francisco's most famous shipwreck.

One of few lasting examples of the brief octagon craze that developed into folly.

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

This historic tower in the California desert promises visitors a "vortex of good vibes".

This large collection of tiny things revels in the art of fine machinery well made.

California's oldest wind harp represents a historic piece of America's Danish history.

Three vintage horses survived a 1976 inferno and found a home on a sister carousel.

Secret US military film studio in the Hollywood Hills.

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

Suburban observatory was personal lab of the father of modern astrophysics.

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

A tree grown from astronaut seeds which were exposed to cosmic rays.

A ring of creosote bushes that are estimated to be 11,700 years old.

Nationwide network of co-ownership underground catastrophe shelters.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

One of the best collections of antique printing machinery in the world.

No matter what it might seem like on film, most scenes filmed on a plane are filmed at this LA studio.