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

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

Nature's biggest mammal swims in landlocked Oklahoma.

This 1930s-era Route 66 Tulsa landmark was moved, restored, and filled with neon.

Standing at 21-feet tall, this space cowboy adds to the legacy of Route 66's muffler men.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

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

A 50-foot-tall replica of the infamous lamp from 'A Christmas Story' illuminates this small town.

An Oklahoma museum that celebrates the history of the "Mother Road."

A peculiar forest that was handcrafted for government experiments.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

This unusually circular centenarian barn became a Route 66 icon.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

Erosion and time have created a naturally-formed water park.

A 40-foot waterfall flows into this unique natural swimming hole.

One of the deepest springs in Missouri.

An average of 33 million gallons of water pour out of the collapsed cave at the heart of this spherical spring.

A historic, scenic mill that was forced to close due to overlogging.

The seventh largest spring in the world.

Often referred to as the largest spring in America.

A version of this picturesque mill has existed since the 1800s.

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

A eclectic collection of military memorabilia.