An urban laboratory.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

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

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

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

Collection of vintage trailers double as hotel rooms.

The world's largest military aircraft cemetery.

What is the Thing?

This golf ball–shaped former desert real estate office now houses a UFO museum.

A motel dedicated to Southwestern nostalgia.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Limestone caves with spectacular showcase chambers.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

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

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

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

The fading, forgotten remains of a once bright and booming factory.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

One of the largest, oldest, darkest, quietest motel rooms in the world.

The Magical World of George Phar Legler.