A lingering bit of Space Race nostalgia lies in the middle of the desert.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

More than a century old, this trading post resides in the Navajo Nation.

An excursion train traverses a picturesque red-rock canyon along the Verde River.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

A towering bronze statue memorializes the founding father of postwar American conservatism.

A scrap-metal sculpture recalls an infamous 19th-century camel.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

This church on a Tohono O'Odham reservation has stood since 1797.

This once-booming Gold Rush town is now home to a herd of feral donkeys.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

Stairs often replace streets on the steep slopes of this old mining town.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

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

A museum and tribute to a brave profession.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

The cinder cone volcano with a less than complimentary name.

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

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