World War II era photos of major cities in Germany, Italy and France have been adeed to the historical imagery layers of Google Earth. I also noticed some 1950’s era data in Berlin.
Germany: Hamburg, Augsburg, Nuremberg, Freiburg, Koblenz Dortmund, Lübeck, Kiel, Stuttgart, Wiesbaden, Mainz, Frankfurt/Main, Bonn, Cologne, Düsseldorf, Bamberg, Regensburg, Göttingen, Kehl, Magdeburg, Dessau, Leipzig, Dresden and more of Berlin.
France: Strasbourg, Bordeaux and Lyon.
Italy: Torino, Florence, Naples, Bologna, Rome.
From Google Earth Blog.