The remains of an early 1900s dude ranch that operated until the 1970s.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Abandoned silver mine strewn with wrecked and twisted structures.

This spectacular track has run continuously since 1882.

A Mars simulation in the southern Utah desert.

Come for the speed, leave in love with the desert.

A sculpture for the sun and stars, created by Nancy Holt.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

Dig for your own trilobites in this goldmine of invertebrates.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

This geothermal hot spring hides beneath a slowly growing mineral dome.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

The U.S. Air Force has an anti-satellite laser weapon.

One of the American Southwest's most extensive collections of Navajo rock art.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

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

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A clear blue swimming hole with hidden caves, still unexplored.