The first spinning jail built in the United States is the only one that still turns.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

Eight feet in diameter and more than 24 feet around.

An eclectic assortment of medieval architecture in a small Iowa town.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

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

The World's Largest Bull.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

An obelisk commemorating Lincoln's role in connecting the coasts.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

The largest collection of historical roller skates in the world.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

An idle pastime becomes a record holder in Boys Town, Nebraska.

A brick-paved former section of the historic coast-to-coast highway.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

This little gem of a museum is a hidden jewel filled with prehistoric treasures.

Four ionic columns from the Treasury Department building ended up in a park in Nebraska.

America's largest man-made forest was planted in an effort to bring back the past.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

The two-cell building in Nebraska was briefly owned by a teenage boy and then a Hollywood dummy.

The home for all things Kool-Aid offers everything except a chance to actually enjoy the drink.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

Inside this magical collection, you can buy recipes cooked up by church ladies, motorcycle clubs, and clowns.