The remains of the first public diamond mine in Arkansas.

The only diamond mine in the world where you can keep what you find.

A restored schoolhouse was once a vital part of the Black mill workers community in Arkansas.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

Despite what scientists think, the town still says this is an extraterrestrial rock.

Often referred to as the largest spring in America.

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

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

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

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

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

This is not your typical jungle gym.

Mobsters came for a soak in the hot springs, and stayed for the illegal gambling and bootlegging.

Two gushing waterfalls of hot spring water within a block of each other.

Come for the heirloom-corn whiskey, stay for the wood hats.

After miraculously surviving a giant flood, the 19th-century nut tree and its offspring are protected with their own tiny park.

A sculpture of a giant man escaping from the depths of the Earth.

When Joseph Marconnott died, he had a unique final wish: to be mummified and put on display.

One of the world's earliest skyscrapers.

This museum located in the "Corn Cob Pipe Capital of the World," chronicles the history of cob pipe.

This mausoleum is the final resting place of one of St. Louis's richest and most tragic families.

One of few surviving standpipe water towers in the U.S.

The first rural cemetery west of the Mississippi is home to the elaborate tombs of St. Louis' local beer barons.

Who said a biker bar is no place for a taxidermy squirrel collection?