House on the Rock in Wisconsin. It’s pretty cool.

Pictured Rocks National Lakeshore

Anywhere along the shores of Lake Superior is nice, lots of good hiking

Driftless area: NE Iowa, SE Minnesota and SW Wisconsin

Cedar Point Amusement park in Sandusky, Ohio. There’s not much else in Sandusky, but the park itself is world-class, people fly in from all over for the coasters.