The abandoned personal amusement park of the King of Pop.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

San Francisco Bay's ghost town.

A couple turned their front yard into an artistic masterpiece.

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

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

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

Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Acres of natural wonders left behind by a socialite-turned-gardener.

A hidden subterranean installation offers a view of the sky.

World War II-era Nazi compound nestled in the Santa Monica hills.

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

From pre-war whiskey cocktails to prohibition-era speakeasy secrecy, this bar has seen it all.

The quiet canyon has a tumultuous history involving a doomsday cult.

One of the ghostly stops along Route 66.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

A storybook European village in Berkeley.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.