There was this Polish hospital that became a bit of a local activity really - loads of us, through word of mouth, heard about it and how it'd been abandoned (I think because of asbestos...) so naturally we broke in and explored it a couple of times.
The problem was we did it at night every time. And it was all one level - just loads and loads of wings and corridors and it felt like a maze. Naturally, since we were like 18/19 at the time, we'd dick around in them and try to scare each other senseless and it worked... I don't think I have any photos from it, but I remember some friends of mine made a music video in it -tries to find-
probably best if you mute the music
anyway they tore it all down about 2 years ago because of the constant intrusions and it was a health risk