Former self-sufficient mental institution now a planned community.

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

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

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

The bones of an old zoo crumbling in the shadow of a new one.

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

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

A Beaux-Arts triumph set to become Ford's innovation campus

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

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

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

The last remaining tollhouse in Michigan built during the 19th-century plank road craze.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

The plants form a living library and laboratory for researchers and students at Michigan State University.

A park and memorial dedicated to the victims of the deadliest school massacre in American history.

The writing studio of an American adventure author, built in the style of a medieval castle.

A restored 114-year-old railroad station heralded as the most photographed depot in the United States.

World's largest Christmas store.