Decaying military base deactivated in the 70s is now visited by urban explorers and military enthusiasts.

This former Texas landfill is flush with 300 million-year-old fossils, all fit for the taking.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

This marker identifies the location where three states converge.

The Grand Canyon of Texas.

17th century mosque for Shah Abbas' harem.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

Home to Hollywood history and a very special salt crystal.

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

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An extravagant western hotel where every floor is the "ground floor."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

The only diamond mine in the world where you can keep what you find.

One believer transformed a local curiosity into proof of Vikings on the Great Plains.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

No matter what the plaque under this massive legume says, this is not the world's largest peanut.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

A museum honoring Oklahoma military service, where you can look into Hitler's mirror and see a Mickey Mouse gas mask.

The largest land animal skull ever discovered.

The final resting place and once home of the Bandit Queen of the West.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

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