This mysterious hill seems to pull objects uphill.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

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

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A medical facility that has been kept frozen in time.

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

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

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

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

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

The world's largest anatomically accurate brain sculpture.

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

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