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

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

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

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

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

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

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

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

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Its diverse collection of computers and technology spans the ages.

From the Difference Engine to the Cray-1, all under one roof.

See the computer’s history revealed over the course of 20,000 years.

Given just one more year to live, Conrad Schuck built his dream house in Bartow, Florida.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

Famous for its bio-luminescent inhabitants, known as "dismalites."

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

The world's first commercial spaceport is a disappointment of cosmic proportions.

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

This quiet park's strange sedimentary spires were named after Kodak's color film.