The granite monument is engraved with the image of the talking horse's head coming through a barn door.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

Where Elvis Presley received his first Army buzz cut.

Bronze statue marks the spinach capital of the world.

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

Thousands of small machines line the shelves of this personal collection which definitely delivers on its name.

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

This unusually circular centenarian barn became a Route 66 icon.

A large stone map of Arkansas awaits visitors to its highest point.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

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

The Ozarks' strangest dwelling.

This small-town museum is dedicated to the original western movie mega-star.

A peaceful place in the woods where everything is a work in progress.

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

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

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

A natural rock formation believed to be a cure-all.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

This beacon for pre-radar pilots once guided Charles Lindbergh to a safe touchdown in Tulsa.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

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

The final resting place and once home of the Bandit Queen of the West.