SZT2990300: Aircraft and dirigible, 1911 (b/w photo) / Bridgeman Images

SZT2990306: German panzer III E in France, 1940 (b/w photo) / Bridgeman Images

SZT2990308: German Panzer IV during fighting in France, 1940 (b/w photo) / Bridgeman Images

SZT2990311: Czar Boris III with Prince Cyrill of Bulgaria, 1941 (b/w photo) / Bridgeman Images

SZT2990318: German Panzer III crosses the Aisne, 1940 (b/w photo) / Bridgeman Images

SZT2990321: Still from the Movie 'Victory in the West,' 1940 (b/w photo) / Bridgeman Images

SZT2990322: German tanks advancing in France, 1944 (b/w photo) / Bridgeman Images

SZT2990325: German command tank I B in France, 1940 (b/w photo) / Bridgeman Images

SZT2990327: Ludwig III. of Bavaria (b/w photo) / Bridgeman Images

SZT2990330: Prince Regent Luitpold of Bavaria, 1901 (b/w photo) / Bridgeman Images

SZT2990335: Prince Regent Luitpold of Bavaria in a sleigh, 1911 (b/w photo) / Bridgeman Images

SZT2990349: Destroyed train station after a withdrawal (b/w photo) / Bridgeman Images

SZT2990352: Herbert Backe, Friedrich Giese and Josef Martin Bauer, 1944 (b/w photo) / Bridgeman Images

SZT2988630: German light armored vehicle crew at a debriefing, 1943 (b/w photo) / Bridgeman Images

SZT2988657: Francisco Franco in Toledo (b/w photo) / Bridgeman Images

SZT2988669: A farmer plows on Gendarme's Square, 1942 (b/w photo) / Bridgeman Images

SZT2988670: Magda Goebbels, Joseph Goebbels, Walther Darre, Philipp Bouhler, Martin Mut (b/w photo) / Bridgeman Images

SZT2988671: Auerbach cellar (b/w photo) / Bridgeman Images

SZT2988672: Main train station in Bremen, 1925 (b/w photo) / Bridgeman Images

SZT2988675: Honor guards at the Colonial Memorial in Bremen, 1937 (b/w photo) / Bridgeman Images

SZT2988677: Free port in Bremen, 1900 (b/w photo) / Bridgeman Images

SZT2988687: Bremen, 1938 (b/w photo) / Bridgeman Images

SZT2988691: Battleship Potemkin by Sergei Eisenstein, 1925 / Bridgeman Images

SZT2988692: Battleship Potemkin by Sergei Eisenstein, 1925 / Bridgeman Images

SZT2988694: Helgoland, 1938 (b/w photo) / Bridgeman Images

SZT2988699: Unloading a cotton freighter in Bremen, 1930 (b/w photo) / Bridgeman Images

SZT2988703: Freighter in a lock in Bremen's harbor, 1935 (b/w photo) / Bridgeman Images

SZT2988705: German soldiers inspect their gasmasks, 1917 (b/w photo) / Bridgeman Images

SZT2988707: German soldiers inspect their gas masks, 1917 (b/w photo) / Bridgeman Images

SZT2988712: Second Vienna Award (b/w photo) / Bridgeman Images

SZT2988714: Cliff 'Monk' in Helgoland, 1934 (b/w photo) / Bridgeman Images

SZT2988719: Helgoland, 1910 (b/w photo) / Bridgeman Images

SZT2988735: Fishermen on Helgoland, 1906 (b/w photo) / Bridgeman Images

SZT2988753: Trude Eipperle, 1938 (b/w photo) / Bridgeman Images

SZT2988762: International Flight Day at Tempelhof airport in Berlin, 1930 (b/w photo) / Bridgeman Images

SZT2988764: Oberwiesenfeld airport in Munich, 1930 (b/w photo) / Bridgeman Images