The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The first declared National Monument in the United States.

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

The remains of a 19th century spring, and the site of an infamous unsolved murder.

Ruins of a Carnegie family mansion on Cumberland Island.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

"X" marks the spot of an echo chamber in the middle of a plaza.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

A white oak with property rights.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

The “American Gothic" artist's largest works hang in an Iowa State University library.

This hand-carved wooden carousel in the Story City North Park was built in 1913.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

The oldest university museum west of the Mississippi retains its 19th century feel.

Home with Gothic windows featured in a famous painting.

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

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

A small burial plot formerly stranded in the middle of a road.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.