Its dark depths conceal millions of rare, delicate crystal formations.

The rusting remains of the largest assembled WWII fleet on the West Coast.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

The overgrown ruins of a once thriving World War I-era copper mine.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

The miraculous hydrant that saved the Mission District in 1906.

Two rocks in a perpetual kiss and one of "the most romantic spot in America."

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

A deserted hodgepodge of experimental structures designed by nearby university students.

A Mysterious Masonic tomb in San Luis Obispo.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

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

World's largest collection devoted to one fruit.

A fake town founded by Western movie stars is now becoming a hip desert community.

The site of a classic series of Laurel and Hardy pratfalls.

A ruined hotel with an unlucky history and an eerie present.

This 19th-century church is now a popular roller rink.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.