An urban laboratory.

Odd outsider art installations surround a Gold Rush-era ghost town.

The most magnificent bottle house in a town strangely full of them.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

A spiritual vortex among the red rocks in Sedona.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

A Wild West jailhouse that slid down the mountainside.

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

An eatery for UFO seekers on the Extraterrestrial Highway.

A sharp bend in a dramatic river canyon cut through red rocks.

A picture-perfect town, perfect for blowing up.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

An homage to everyone's favorite prehistoric cartoon family.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Rippling sand dunes frozen in the Arizona rock.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Mysterious meeting place for UFO hunters near Area 51.

A Saint Nicholas-themed ghost town in the Mojave desert.

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

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.