An early 20th-century jail not far from the infamous Tombstone, Arizona.

This giant steer-skull edifice refuses to die.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

This old mining town, deep in the California desert, has a year-round population of one.

In one of the hottest parts of the Mojave Desert, shallow bedrock forces the typically dry Mojave River to the surface in this canyon, providing a vital oasis for humans and wildlife.

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

The ghost town that ended up on Ebay.

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

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

An old California photo stand has been turned into a shrine to the cozy art of crochet.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

Version of the French Riviera destroyed by the sea.

Burping, gurgling geothermal mud pots by the Salton Sea.

Huge otherworldly domed rocks on the shore of a deadly lake.

Erroneously called the world's tallest flagpole, this landmark is devoted to "good neighborliness."

Since World War II people have been decorating this stretch of the Yuma desert with signatures arranged out of rocks.

A scrap-metal sculpture recalls an infamous 19th-century camel.

Explore 10 acres of environmental sculptures.

It's safe—and permitted—to walk across these twin natural sandstone arches.