The first declared National Monument in the United States.

At the time of its completion, it was the tallest dam in the world.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

Native Americans built this circle of stones, which was used to predict astronomical events.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

The easiest way to the highest point in Wyoming is only accessible via one hefty fee.

A popular rock that acted as a waymarker for American pioneers.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

A devilishly named gorge that was a sign of salvation for many pioneers.

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

One of the smallest towns in the United States.

The only retired U.S. nuclear missile silo that is open to the public.

The same security that protects our nukes accidentally protected a gentle herd of antelope.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A multi-storied adobe complex has been inhabited for more than a thousand years.

Taos Pueblo recipes, foraged ingredients, and outdoor ovens define the menu at this eatery.

A natural formation that resembles a camel resting in the New Mexico desert.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The home of famed war correspondent Ernie Pyle is now a library and museum dedicated to his memory.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.