For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

A six-story-tall golden pyramid, surrounded by a moat.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

This baseball diamond was home to the Rockford Peaches, a team featured in the hit film "A League of Their Own."

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

Unique tower has outlasted a takeover of the company.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

A miniature world of concrete and stone in Springfield, Ohio.

A real flying saucer, contracted by the U.S. Air Force.

A hidden oasis just two minutes from downtown Atlanta.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

Nature and art meet in this curvy creation

The humble Hoosier roots of a famed Broadway composer.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.