There is now a viewing platform in the square in front of Notre Dame which makes for a great venue to watch the fire spinners and other street performers, and a nice vantage point to view the facade, but it does present an unique challenge for photographing the entire building – you can’t get far enough back to get the whole facade including the towers in one frame without using an extreme wide-angle lens and introducing lots of distortion. So second-best option was this – shoot in two frames and line them up. It ALMOST worked, but you still get some keystoning from having to shoot up to get the towers.