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.

The only surviving prototype for Buckminster Fuller's house of the future.

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

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

The city is full of whimsical portals to another world.

World's largest Christmas store.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.