The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

A mini Wrigley Field for mini baseball players.

Home to a monument dedicated to the American Rock duo along with a collection of music memorabilia.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

A curiosity-seeker's paradise set inside a three-story historic school house.

One of the few surviving "Wigwam"-themed motels.

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

Mile-long cave system near Great Smoky Mountains.