One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Little island known for its massive beachfront "flowerpot" pillars.

Holding the most bodies of any cemetery in the United States.

A geological mystery on Camelback Mountain.

The world's largest Holstein cow.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

Strange physical sensations and optical contradictions keep visitors coming back for more.

One of the largest crucifixes in the world stands 55 feet tall in a secluded, wooded area of northern Michigan.