A geological mystery on Camelback Mountain.

One of the most unusual geological features, recognizable from a dozen hit movies.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

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

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

A motel dedicated to Southwestern nostalgia.

Legends surround this jagged rock formation in the New Mexico desert.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Oddly shaped rock formation, misassociated with a nearby utopian community.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A Wild West jailhouse that slid down the mountainside.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

The drama of nature in full effect in this Nevada State Park.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.