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

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

A Mars simulation in the southern Utah desert.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

A serene garden path lined with 36 haiku stamped into clay stones.

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

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

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

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

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

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

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

Seller of surplus nuclear research materials.

America's largest man-made forest was planted in an effort to bring back the past.

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

A rancher expanding a natural spring for his cattle came up with bones – lots and lots of them.

Adobe ruins punctuate the beauty of an 800 foot canyon carved by the Canadian River.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

This UFO landing strip was created by a charitable Wyoming city that was worried about residents of Jupiter.

A fascinating collection of art made from petrified wood and fossils by two octogenarian twin brothers.