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

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

A house built from trash known as the poor man's Hearst Castle.

A multimedia experience that chronicles the atrocities of racism.

Playable, historic pinball machines fill this Alameda museum.

The location of the last stand of Charles Manson's doomsday cult.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

This private residence was the template for one of the most beloved television homes of all time.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The art and history of the velvet painting are on full display in this Los Angeles museum.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

The unbelievably opulent home built for an infamous newspaperman.

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

The abandoned personal amusement park of the King of Pop.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

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

A museum befitting the city responsible for supplying the majority of the world's LSD.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A hotel and restaurant serving as the mecca of kitsch.