This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Some of the oldest exposed rock formations in the United States.

Giant granite rocks standing end-to-end like a train of circus elephants.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

Home of Howard Hughes' Spruce Goose.

The wooden airship was the largest flying boat ever built.

Two massive rock outcroppings on the Oregon coastline.

A massive sea stack famous for its appearance in The Goonies.

Where Nor'easters go to die.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

A beautiful geyser under environmental threat.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

These markers are used to determine the ground stability of the Strip.

Home of a French nobleman's short-lived attempt at raising cattle in the Badlands of North Dakota.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

An exotic wildlife habitat right off The Strip.

A cannon designed to fire an atomic warhead.

A railroad lift bridge that was only lifted once and became obsolete before construction was finished.

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

An experimental, automotive replica of Stonehenge.

The legend of a local monster still haunts this small town.