Highgate Cemetery, Romford Rd, East London. When I was there in '06, it was the most magical (and quite scary) place to explore. It appeared that at the back of the cemetery (similar to the photo) there were areas that had possibly been bombed due to huge, unexplainable pits in random places where graves had fallen into/been destroyed. The chapel had partially collapsed, and vines and trees found their way inside, as did birds. A quintessential mysterious creepy London cemetery!