This sanguine boulevard was named after a deadly cowboy bar fight.

A Wild West jailhouse that slid down the mountainside.

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

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An artificial crater field that trained astronauts for lunar exploration.

An urban laboratory.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

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

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

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

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

Limestone caves with spectacular showcase chambers.

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

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

A spiritual vortex among the red rocks in Sedona.

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

See massive fossils that are over 200 million years old in northeastern Arizona.

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

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

A sharp bend in a dramatic river canyon cut through red rocks.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

The Giant Lemon of Lemon Grove.

This black shoreline is made up of exploded lava particles.