Each winter this underground cave forms a dazzling ice palace.

The decaying adobe remains of an old homestead are just off the beaten path in Joshua Tree National Park.

The Route 66 institution that inspired Taco Bell also served as an important headquarters for Mexican-American social movements.

A natural dome made of volcanic glass in Inyo National Forest.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

Wheels of chrome by the thousands adorn this California Historical Landmark.

Odd stone and concrete monuments in the "Poet of the Sierras" eclectic folly garden.

Once the largest winery in the world, this castle-like building now sits abandoned on the San Pablo/San Francisco Bay shore.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

Hidden in the Santa Ynez Mountains off Highway 154, this tiny restaurant once served as a stagecoach stop.

Colorful Native American paintings are hidden within this small cavern.

A stranded woman lived alone on this remote island for 18 years, inspiring the great children's novel "Island of the Blue Dolphins."

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

An old-timey medicine shop that once served Chinese laborers during the Gold Rush is still open for business to this day.

Massive prehistoric mammals used these stones as oversized scratching posts.

From sax to spuds, get 'em all at this landmark music establishment.

The most beautiful Taco Bell in the world even has surfboard parking.

The long, arduous journey of the stones of the Abbey of New Clairvaux.