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.

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

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

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

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.

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

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

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

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

It's good luck to be mocked by this monkey.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

Priceless space junk on display in front of a local Dairy Queen.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

Memorializing an American tragedy of massive proportions.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

The largest burial mound in the United States holds the remains of prehistoric West Virginians.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.