If you haven't recognized it, this is the St Paul cathedral in London. It's huge! Really HUGE (150m long/40m wide/110m high). Its dome is the second biggest after St Peter in Rome. This is a 10 pictures pano (I needed it although I have a 17mm lens). I thought using perspectives would better render the size of the building, therefore the unusual aspect. (I apologize if somebody finds the title inappropriate)