"I did this all while you were watching TV."

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

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

Natural sonic phenomenon comes with a grisly legend of murder and blood.

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

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A fitting attraction for the corn capital of the world.

The highest bridge in America was built for an almost unnervingly small amount of money.

A diverse, expansive nature preserve in northeastern Kansas.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

This replica of the Greek structure is in the heart of Nashville.

A cannon designed to fire an atomic warhead.

Less a museum than a bizarre fantasy world created by artists and engineers.

This historic church is named for abolitionist Henry Ward Beecher and the ruse to arm his fellow abolitionists.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

European castle ruins in an American state park are actually the product of death and grief.

This quirky Arkansas wax museum does not shy away from the macabre and the grotesque.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

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

Nature's biggest mammal swims in landlocked Oklahoma.

Where the author wrote her beloved "Little House" books.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

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