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

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

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

This vintage theme park is peak Christmas kitsch—and it's open all summer.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

This cave holds a surprisingly colorful variety of geological oddities.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

Home with Gothic windows featured in a famous painting.

An oddly poignant roadside attraction celebrating American folklore.

In 1953, a group of Wisconsin high school students helped build a hospital by collecting over a million pennies.

Meet the "Green Monster" of Monico, Wisconsin.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

At the largest railway museum in the United States, you can see everything from an early steam engine to a functioning Thomas the Tank Engine.

See where Bill Murray kidnapped a hapless Punxsutawney Phil.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.