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

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

Chilly air billows out from the entrance of an abandoned mine on a steep hillside, providing a refuge for Ice Age fauna and flora.

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

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

Eight feet in diameter and more than 24 feet around.

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

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

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

The notorious couple camped at this site after a bloody shootout with police.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

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

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

The World's Largest Bull.

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

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

Home with Gothic windows featured in a famous painting.

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

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

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

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

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

Cannon designed to fire an atomic warhead.

Once a giant oak that served as the region's post office.