6 Ways to Enjoy Illinois' Midewin National Tallgrass Prairie
Peek into spooky bunkers
Through its heritage program, Midewin offers three-hour "ghost tours" of the old ammunition plant. In this case, the ghosts are the buildings. Empty TNT boxes lie everywhere, and guides explain the history of the Joliet ammunition plant. Sometimes, peeking into the past is the best way to appreciate the present.