This abandoned prison castle has become an imposing gallery of graffiti art.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

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

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This historic national park is covered in the stunning ruins of red rock pueblos.

Ancient pueblos built into the base of a natural canyon wall.

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

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

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

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

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

A museum dedicated to the alleged Roswell Incident.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

When ecosystems collide in the arid Southwest.

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

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