The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A field of nothing but boulders which resembles a giant's gravel driveway.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The famous Beatle secretly visited this Illinois town several times to visit his sister.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Yo, Adrian!

A mural of a boy making a phone call connects a southern Maine community to a town in Iraq.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This small-town pizzeria won the Hollywood lottery.

This historic, one-acre island is the only legal place to camp in the city of Richmond.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Metal sculpture folk art lining the Kansas Highway.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

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

A mysteriously dark cemetery monument fuels stories and legends galore.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

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

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