Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

This Old West prison built into the side of a cliff was said to be inescapable.

The biggest solar telescope in the world helps reveal the secrets of our sun.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

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

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

This small, unassuming street is now a canvas for color and creativity.

Legend says train robbers stashed their gold within the depths of this unusual cave.

This collection of neon icons is preserving Arizona's history, one sign at a time.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

This giant steer-skull edifice refuses to die.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

A natural history wunderkammer in the middle of the desert.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

A mysterious spirit totem at the edge of Navajo lands.

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

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

The world's largest military aircraft cemetery.

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

Limestone caves with spectacular showcase chambers.

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