An off-grid art installation that encourages its visitors to imagine a world without waste.

A hand-built folk art installation covered with messages of God's love.

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

The remains of this hell for leather wild west town can still be found in the Arizona desert.

An homage to everyone's favorite prehistoric cartoon family.

A small canyon with petroglyphs and a seasonal waterfall, only a short hike from the remnants of old Route 66.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

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

An artificial crater field that trained astronauts for lunar exploration.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

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

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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The largest and most well-preserved petroglyph site in the Verde Valley.

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

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

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

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

The world's largest military aircraft cemetery.

Limestone caves with spectacular showcase chambers.

One of the largest open-pit copper mining operations in the entire country.

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

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.