From neon green watering holes to bleached elephant foetuses, this Mozambique museum makes natural history weird.

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

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

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

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

Home of the International Space Hall of Fame.

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

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

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

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

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

This highest peak in New Mexico is named after an explorer who had a habit of lending his monicker to peaks.

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

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

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

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

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

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

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

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

This historic theater's pipe organ still accompanies silent films just like it did in 1929.