One of the world’s largest living advertisements is made out of pine trees.

The world's longest known cave system.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

The first artificial white water river course in North America cuts right through an Indiana city.

A giant concrete egg marks this Indiana town as the "Egg Basket of the Midwest."

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Low-frequency noise compared to an idling train can only be heard by some of this industrial town's residents.