Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The cinder cone volcano with a less than complimentary name.

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

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

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

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

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

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

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

Limestone caves with spectacular showcase chambers.

The world's largest military aircraft cemetery.

A spiritual vortex among the red rocks in Sedona.

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

An urban laboratory.

A motel dedicated to Southwestern nostalgia.

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.

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

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

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

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

A mysterious "wedding cake" castle in the middle of the urban desert.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.