Nature and art meet in this curvy creation

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

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

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

If astronomy had a ghost, it would look like this observatory.

The world's largest anatomically accurate brain sculpture.