The world's longest known cave system.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

This lovely public park has an intriguing past and unique wooden bridges made of concrete.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

Marine fossils from the Devonian period are exposed at this park.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

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

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

House built with over 60,000 glass bottles.

The former home is said to be haunted by the ghosts of the beloved mayor and his wife who lived here.