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

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

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

The first steel dam in the world and the only one still functional in the United States.

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

A tribute to the statues of Easter Island along Route 66.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

A strenuous, unofficial trail leads to spectacular views in one of America's most remote national monuments.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

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

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

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

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

One man handcrafts "the best sake made outside of Japan" in a tiny desert town on Route 66.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

The lost ruins of the forgotten ferry lie hidden beneath the silt.

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

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

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

The unusual burial monument of Arizona's first governor.

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

The cinder cone volcano with a less than complimentary name.

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