Every president in history is immortalized in bronze in downtown Rapid City.

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

The only arched bridge made of stone on the entire Mississippi River.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This massive roadside mascot was the first version of the giant to illustrate his butt.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

The world's largest anatomically accurate brain sculpture.

A flamboyantly decorated bridge signals diversity and fellowship at the entry to Indianapolis' Broad Ripple Village.

This mysterious hill seems to pull objects uphill.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

The home used in just a few seconds of film that came to define the setting of a hit sitcom.

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

Nature and art meet in this curvy creation

More than 3,200 cookie jars line the walls and shelves of this little shop and over 1,000 salt and pepper shakers