This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Learn all about this iconic air rifle without putting an eye out.

This mill has survived a tumultuous past to still produce flour and cornmeal.

One of the oldest show caves in Arkansas.

This mountaintop refuge rehabilitates tigers, lions, bears, and more from illicit wildlife trade—and offers overnight lodging.

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

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

This century-old roadside attraction is full of bizarre rock formations.

The warmest cave in the Ozarks features two seemingly bottomless lakes.

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

Who said a biker bar is no place for a taxidermy squirrel collection?

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

During the 19th-century, this park was a vital trading fort.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

One of the world's earliest skyscrapers.

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

One of few surviving standpipe water towers in the U.S.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

A rapidly disappearing glacier filled with extinct grasshoppers, perfectly preserved in the ice.

See the computer’s history revealed over the course of 20,000 years.

The source of America's longest river is also a historical landmark and the start of a famous nude run.