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

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

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This freshwater spring fills with 10,000 gallons of water per minute.

The mounds at this site were reconstructed with the help of archaeologists and historians.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

This unique collection collects pieces of art etched into thin pieces of stone.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

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

One of the few working locomotive roundhouses in the United States.

Astounding collection of coin-operated games and automata.