Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

Who said a biker bar is no place for a taxidermy squirrel collection?

European castle ruins in an American state park are actually the product of death and grief.

This museum presents a dogged pursuit of 500 years of veterinary history.

Destroyed by flood waters, prison now serves as a training ground for armed forces.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

Enormous small-business mecca in the Midwest, serving dozens of artists.

Glass and concrete building designed by Albert Kahn.

Located inside a former bread factory, this museum explores a century of transportation history through innovations that were extraordinary or failures—sometimes both.

The birthplace of the Ford Model T is now a museum full of antique cars.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

An abandoned bus station transformed into a museum dedicated to the history of Greyhound Lines, in the place where it all began.

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

Camera cars and condom bikes built from scrap and one man's passion.

Over 600 vacuum cleaners stack the shelves of what may be the cleanest museum in America.

A treasure trove of scientific instruments from the 17th and 18th centuries.

This two-room shotgun shack in Tupelo is the birthplace of a King.

An homage to the pointers and retrievers that have long been a hunter's best friend.

Pyramid home to an obscure religious group that practices modern mummification.

A 1950s eccentric's vision of Eden preserved as a hiking trail.

This old ruin once served as a post office, a train station, a restaurant, and a bridge to the Atomic Age.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These strange carved boulders in a forested canyon resemble tiny stone villages.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.