The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

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

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

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

This unassuming home was once “grand central station” for the Underground Railroad.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

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

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