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

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

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

Radioactivity still cause for concern at this urban explorer's paradise.

An academy where anyone can train in the exciting acrobatic sports of parkour and freerunning.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

This abandoned boat was left in place thanks to its rotting beauty.

Abandoned hotel with adjacent lake and golf course.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

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

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

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

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

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

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

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

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

A beloved carnival gets a modern makeover in Los Angeles.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

One of the world's longest murals depicts the history of diversity in Los Angeles.

This impressive tunnel was dug entirely by hand over the course of 36 years.

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