A "haunted" landmark on the coast of Southern California.

Abandoned Air Force base that has fallen into disrepair.

This former stomping grounds of the most eminent astronomers of the early 20th century.

Colorful Native American paintings are hidden within this small cavern.

An offbeat angle on the ocean viewed through an antiquated lens.

The Hopi-style structure was built by the man who discovered Desert Hot Springs' famous mineral water.

Rare collectibles from automated musical instruments to 250 unique automobiles.

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

A hidden world of exotic succulents and cacti.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

Get up close to emus and ostriches, or buy their tasty meat.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Ancient human, animal, and geometric figures drawn in the earth.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

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

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

A grove of "candelabra redwoods" deep in California's Lost Coast.

“It's the quality” (but probably also the drive-through donut tunnel) that has attracted diners since 1968.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A nursery specializing in strange and beautiful succulents and cacti.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.