When ecosystems collide in the arid Southwest.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

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

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

Seller of surplus nuclear research materials.

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

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

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

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

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

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

A sculpture for the sun and stars, created by Nancy Holt.

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

Come for the speed, leave in love with the desert.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

The longest living non-clonal organisms on Earth.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

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