A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

The oldest house in Galena, Illinois, now is a reminder of when this city was the world's lead mining capital.

Dozens of large steel sculptures fill this two-acre park outside a former blacksmith's studio.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

An underground wonderland in Iowa.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

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

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

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

The farm toy capital of the world hosts a museum filled with toy tractors dating back to the late 1800s.

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

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

Former hotel turned into haunted playground.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

The face of a woman pushes its way through the earth.

World's second largest particle accelerator, where nature reveals its secrets.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

A onetime gangsters' hideaway where you can dine on steaks, fine wines, and cigars just like they once did.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

This lush 12-acre site was once named the finest Japanese garden in North America.

This deceivingly ordinary warehouse hides an enormous collection of pop culture treasures.

The tunnel that runs beneath this former inn was once a hiding place for enslaved people seeking freedom.