The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

The world's largest collection of the world's largest objects is in one small Illinois town.

Often referred to as the largest spring in America.

The largest riverfront opening cave in the Ozarks.

This museum features the original car used on the Beverly Hillbillies sitcom.

A nature and cultural preserve named for its multitude of petroglyphs carved by the Northern Sinagua people.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

The largest source of fossilized insects anywhere.

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

A mysterious light of unknown origin on the backroads of Missouri.

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

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.

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

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

This small town bank is very aware of its name thank you very much.

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

This historic cliffside mansion uses a natural cave for air conditioning.

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

This is not your typical jungle gym.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

Giant granite rocks standing end-to-end like a train of circus elephants.