One of the world's largest telescopes, stares into the night sky with two huge mirrors.

America's only nuclear missile silo open to the public.

Most-visited and most-photographed slot canyon in the American Southwest.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

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

Recycling meets art in this colorful barricade.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

An abandoned amusement park based on the popular 1940s Red Ryder comic strip.

This is one really big nut.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

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

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

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

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

These aggressively sustainable art homes look like something out of 1970's science fiction.

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

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

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

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

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.

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