rooftopping

Hi was wondering if anyone knew of any buildings with accessible roofs that are quite high up, buildings under construction with not much security are good aswell!

Hellooo, I’ve recently spent a lot of time exploring and attempting to explore some abandoned places and stuff. I live in the Manchester area and have become interested in trying rooftopping, however I don’t really have anyone to do it with. Is there anyone else also interested in this, or...