This is one really big nut.

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

A frozen oasis lies beneath the scorching New Mexico desert.

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

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

The largest self-built castle in the U.S., six decades in the making.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This enigmatic building features numerous architectural styles.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

This popular pitstop lives up to its name.

Explore a misty river canyon from a metal bridge system.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

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

The state bird of New Mexico, constructed entirely out of garbage.

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

More than 21,000 images fill this overlooked gem of a prehistoric site.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

Over 50 historic windmills whir away at this outdoor museum.

Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.