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.

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

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

This 16-foot-diameter wooden coin has been standing in Iowa City since 2006.

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

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

At a mile long, the Fort Madison Bridge is the largest double-decker swing-span bridge in the world.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

No one knows the origin of this small town’s unique name.

The only museum in the world dedicated to the history of sprint car racing, next to one of the country's most historic dirt tracks.

This simple home was the beginning of a long journey for the iconic Western film star.

This seemingly charming home memorializes and honors the victims of a century-old unsolved murder.

Home with Gothic windows featured in a famous painting.