An outsider art studio that created a piece of work so popular they had to turn mainstream.

A tiny but mighty little pumper sits in the middle of the street, waiting for the next big oil strike.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Constantly maintained, this organ is playing a six-century long composition by John Cage.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

A strange rock formation with numerous legends trying to explain it.

This enchanting mountain plateau celebrates spooky local folklore.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Its incredible collection preserves 170 years of sewing machine history.

An acoustic anomaly with a mysterious cause.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

A peculiar forest that was handcrafted for government experiments.

This museum holds not just a world class collection of firefighting artifacts and gear but even the region's first fire station itself.

Built from oil field parts and resembling a teepee, this abandoned mid-century church is hoping for a comeback.

Behind the Cowboy Hall of Fame is a burial ground for good horses and a famed rodeo bull.

An oil baron's wild paradise and the winner of an ill-fated air race.

Collection maintained by the legendary designer.

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

One of the largest Masonic temples in the world, created at the height of the oil boom in ostentatious style.

A collection of beautiful crystals shaped like freshly plucked roses.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

A funhouse dummy that turned out to be a real life mummy, Elmer McCurdy is an urban legend come true.

This ostentatious Italianate palace of an Oklahoma billionaire is filled with several themed mini-museums.