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

World's largest Christmas store.

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

This shallow cave got its name from copious amount of human bones found inside.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

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

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

This sprawling bookstore spans four floors and has more than a million books in stock.