Enormous lake at the bottom of a unique cave system.

Where the author wrote her beloved "Little House" books.

Known as "The Hill of the Little Devils."

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

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Eight feet in diameter and more than 24 feet around.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

Unusual British home built to disguise a water tower.

A tropical paradise once home to space exploration and military installations.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

The world's smallest drawbridge.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

An experimental, automotive replica of Stonehenge.

A statue high in a hill that represents how Buffalo Bill got his name.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

The first declared National Monument in the United States.

A cemetery housing wild west legends in South Dakota.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

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