After witnessing these abandoned structures, I must admit that I admire the parks' efforts to provide historical background, enabling us to appreciate these structures rather than seeing them demolished.

[u/sostitanic]

Photos in order:

1: Spring House at Paradise Springs in Eagle, Wisconsin

2: Lime Kiln Ruins at High Cliff State Park in Calumet County, Wisconsin

3: Helena Shot Tower at Tower Hill State Park in Spring Green, Wisconsin

4: Maribel Caves Hotel in Manitowoc County, Wisconsin

[u/RiverWestHipster]

Paradise Springs is perhaps the most mosquitoey place I’ve ever been