Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

Thousands of turbines whir at at the origin of North American wind power.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

An antique store houses the last operational diner from the defunct department store chain.

Remnants of the United States's largest accidental oil spill still mar a California valley.

Wander through desolate oil fields littered with rigs.

Hidden in the back of a disused small town hotel is a dive bar shellacked with over a million pennies.

The San Andreas Fault spectacularly offsets this creek.

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

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

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.

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

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.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

A kaleidoscope gallery and steampunk emporium named for a pioneering journalist.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

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