The interactive maps of Google Earth, a new layer, allowing users to see what looked like many European cities during the Second World War.

In the program Google Earth appeared images from reconnaissance aircraft during the Second World War. In the public domain images have appeared 40 European cities including Berlin, Bordeaux, Hamburg, Cologne and Dresden.

Aerial migrate users in the past, allowing you to assess the extent of the devastation of the bombing. Using a special program of the slider, you can "travel back in time, observing how to change the look of cities throughout the war, as well as comparing these images with pictures taken by satellites during the past few years.

"The ability to compare how the city looked like then, with how they look now, allows us to realize what a terrible war should be left in the lives of their residents - says Ed Parsons (Ed Parsons), engineer of Google. - In addition, you can see how the city rebuilt and revived in a few decades.

Worth noting that the image of Warsaw, did the Soviet pilots, and pictures of the remaining 39 cities belong to the Royal Air Force and British air forces to the United States. Pilots took off the city from a bird's eye to see what damage had been received after the bombing.

Jan Odakowski, director of the Museum of the Warsaw uprising, believed that such materials may be particularly useful for use in educational institutions. "Programs like Google Earth, should be used during lessons in junior and secondary schools to interest young history", - he believes.