A memorial for an outsider theorist who believed that the planet is actually hollow.

The oldest brick house in the state of Ohio.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

If astronomy had a ghost, it would look like this observatory.

The world's largest anatomically accurate brain sculpture.

The first spinning jail built in the United States is the only one that still turns.

A chapel built by Italian POWs during World War II tells a forgotten tale of the war on the home front.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

The building is topped by a Statue of Liberty statue whose torch has stayed burning since the museum opened.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

No one knows the origin of this small town’s unique name.

An unlikely Transcendental Meditation haven in the American Heartland built around the ancient Vedic principles of balance and harmony.

Software company Epic Systems has created one of the strangest and largest workplaces of all time.

The longest structure of its kind ever built in Michigan.