All people knows - normally - about google maps to have a recent view from the sky. But to discoverer some installation in the past, it exist some official websites grouping old aerial view. After the appetizer, you will find some links below : France It is in french but easy to use, you zoom on the map the place you want to discover, choose the year and open the picture Belgium Find below an appetizer with Paris-Montparnasse station : in 1920 : In 1944 : In 1968 : In 1985 : If you have interesting link from your country, don't hesitate to add them so that every one can explore them, and help to propose routes at older times. I will d them on top Cheers
