The seventh largest spring in the world.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

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

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

A Jurassic artscape composed of transmission casings and other mechanical parts.

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

This stadium was the home of the first organized night baseball game.

A wild trout fishery in Arkansas.

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

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

The Quapaw tribe supplies the meat and produce in this Oklahoma casino restaurant.

The modest childhood home where the baseball legend and Yankees star learned to hit from both sides of the plate.

From a canyon-like gorge, more than 20 million gallons of water emerge every day, while a smaller spring drips down, creating the illusion of an endless, gentle waterfall.

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

The only cave in Louisiana has played host to a state's-worth of clandestine activities.

The largest spring in Northwest Arkansas is also home to a sprawling botanical gardens and a historically significant bluff.

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

The Ozarks' strangest dwelling.

These waterfalls can be twins or triplets, depending on how much it's rained recently.

The highest waterfall between the Rockies and the Appalachian Mountains.

This Little Rock legend has survived decades of rowdy crowds, three fires, and a zombie wedding.

This gas station offers wine tastings and craft beer.

Come for the fried chicken, stay for the history at Oklahoma's oldest bar.

The house where the pulp fiction writer and Conan the Barbarian creator lived.