If you walk in the woods around where I live you from time to time come across ruins, but it’s still always a bit of a surprise. I came across this chimney (with fireplace) just off the trail on Oscawana Island. I have no idea what it once was, and have been unable to find any additional information. Since the Island is directly opposite Oscawana Park (the old McAndrews estate with its numerous ruins) I imagine in might be connected to that.
The graffiti is a bit better than I usually come across (see: Croton Gorge – Why do they do this?), but it’s certainly not in the class of the graffiti I came across in Geneva (see: Geneva – Route de Drize, Graffiti)