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

Miniature art that tells an enormous story.

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

Limestone caves with spectacular showcase chambers.

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

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

A spiritual vortex among the red rocks in Sedona.

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

America's only nuclear missile silo open to the public.

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

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

The Magical World of George Phar Legler.

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

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

A self-built castle made by a mysterious man.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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

Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

A wondrous old library overlooking the nation's capital.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Tucked away between two 19th-century buildings, this small shop specializes in the macabre.