This plaque marks the site where the penultimate chapter in the journey of two doomed boys unfolded in an imagined parallel universe.

A proto micro-nation sometimes populated by artists, surrounded on all sides by a Utah most barren.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

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

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A house carved into a rock in the 1940s.

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

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

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A museum devoted entirely to the rattlesnakes and snake-related art.

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

"I did this all while you were watching TV."

The largest earthwork effigy in the world.

This magnificent Cincinnati graveyard is also a popular public park.

These ancient ritual mounds are our best window into the culture of the ancient Mississippians.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.