More than 21,000 images fill this overlooked gem of a prehistoric site.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

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

This quirky hot springs town known to locals as "T or C" was named after a radio show.

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

A cave's rare beauty held a cavernous secret hidden underground.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

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

A museum dedicated to the alleged Roswell Incident.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.