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

Former self-sufficient mental institution now a planned community.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

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

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

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

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

World's largest Christmas store.

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

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

Cell phone tower constructed entirely of wood.

The fairy tale castle of the "fairy-tale king."

Wisconsin's most celebrated export gets the royal treatment on I-94.

A museum celebrating the self-taught artist-environment builder.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The curiosities and wonders of pharmacy in a delightful historic building.

The state's oldest continuously operating museum houses more than 5,000 Civil War artifacts.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

North America's largest accredited model railroad museum.