The first declared National Monument in the United States.

Abandoned silver mine strewn with wrecked and twisted structures.

A recreation of an Old West apothecary full of curios.

A hotel with a rich Wild West history of miners and bootleggers.

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

Legends surround this jagged rock formation in the New Mexico desert.

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

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

See massive fossils that are over 200 million years old in northeastern Arizona.

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

What is the Thing?

Limestone caves with spectacular showcase chambers.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

This bird-shaped rock formation defies gravity, time, and classification.

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

This is one really big nut.

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

Recycling meets art in this colorful barricade.