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

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

The oddly shaped, steam-spewing building is now an art studio and gallery.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

The Cadillac Ranch for monster truck aficionados.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

One street divides a single town that stands in two U.S. states.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

A maritime museum holding the remains of Blackbeard's pirate ship.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

See massive fossils that are over 200 million years old in northeastern Arizona.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

A real flying saucer, contracted by the U.S. Air Force.

The largest ancient burial mound in Ohio.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

The world's longest known cave system.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.