One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The scant remains of an expansive indigenous civilization can be seen at this Arkansas state park.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

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

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

An ever-growing collection of rare and strange objects owned by local Arkansas illusionist Maxwell Blade.

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

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.

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

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.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

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

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

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

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