I hope this works. These are some pics from the past. It's amazing the difference in 70 years. Just left click hold it and drag your mouse from left to right on the original photos and it will become the exact same location today. Drag it back over and you are in 1944 again...
http://interactive.guim.co.uk/embed/2014/apr/image-opacity-slider-master/index.html?ww2-dday
http://interactive.guim.co.uk/embed/2014/apr/image-opacity-slider-master/index.html?ww2-dday