Along the riverfront (Illinois River) at Pere Marquette State Park, there's a funky little building, perhaps an observation "thingie"? Maybe 16' x 20', 2 stories... The ground floor entry seems to be defunct... Seems that most of the buildings in the park date from the 1930s, which seems possible for this one too... Not, if I'd've been thinking, I'd've taken an "establishing shot" so you could get the big picture.
