A lovely hidden waterfall right off the highway is well worth a stop.

World's second largest particle accelerator, where nature reveals its secrets.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

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

In Grand Rapids, Michigan, a marker honors the creation story of a proud fictional culture.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

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.

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