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

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

The museum moved on, but the diorama remain.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

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

World's largest Christmas store.

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

The secret skeleton of a murdered nun was discovered in this church basement, but the scandal doesn't end there.

Former self-sufficient mental institution now a planned community.

A Bibliophile's Dream.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A monument to the art of slicing people open.