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

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

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.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

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

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

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

The largest land animal skull ever discovered.

The world's only museum devoted solely to the art and collection of action figures.