This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

The fifth-longest natural arch in the world, and the longest outside China.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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

This ghost town was once a cult-like religious utopian settlement.

Oddly shaped rock formation, misassociated with a nearby utopian community.

A house carved into a rock in the 1940s.

A small oasis not far from downtown Moab.

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

An homage to everyone's favorite prehistoric cartoon family.

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

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

A spiritual vortex among the red rocks in Sedona.

An urban laboratory.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

The first permanent memorial to a unique secret weapon of World War II.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

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

The remnants of a creative early method of wildfire prevention.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.