This remote desert watering hole has a connection to a curious chapter of American history.

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

The cinder cone volcano with a less than complimentary name.

The eroded core of an ancient volcano is now accessible by a short hike.

A mysterious spirit totem at the edge of Navajo lands.

A spiritual vortex among the red rocks in Sedona.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

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.

An artificial crater field that trained astronauts for lunar exploration.

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

A replica of the flagpole that gave a frontier town its name.

The first of the iconic American roadside attractions lives on as a college mascot.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

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

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

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

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

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

At 11,500 feet in elevation, there is no toilet in the state closer to the sky than this one.