The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The only road through the heart of Glacier National Park.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

New fungal and bacterial species call this deadly lake home.

A rim-made reptile in North Dakota.

The oldest still-existing mosque in the United States sits in a remote prairie in North Dakota.

A monument to the center of the North American continent may be off by a few miles.

One man's quest to save his town with a trail of record-breaking sculptures.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

A full-scale replica of a 1774 colonial settlement in Kentucky.

This huge clock made of flowers and simple machinery was once used a political weapon.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

An enormous natural sandstone bridge in Kentucky.

Moonbows over Kentucky.

The world's longest known cave system.

This small town bank is very aware of its name thank you very much.

This otherworldly church spire reaches up toward the heavens.

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

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

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.

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

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.