SZT2995513: Man rolls an advertisement ball through Germany, 1913 (b/w photo) / Bridgeman Images

SZT2995528: Paul Mueller after his ocean crossing, 1929 (b/w photo) / Bridgeman Images

SZT2995531: Expedition in the Himalayas, 1934 (b/w photo) / Bridgeman Images

SZT2995561: Carriage of a race horse by an airplane, 1924 (b/w photo) / Bridgeman Images

SZT2995582: Wolfgang von Gronau and his team, 1932 (b/w photo) / Bridgeman Images

SZT2995585: Italo Balbo welcomes Wolfgang von Gronau in Rome, 1932 (b/w photo) / Bridgeman Images

SZT2995591: Wolfgang von Gronau and his team in Chicago, 1932 (b/w photo) / Bridgeman Images

SZT2995618: Forced laborers at a passport control in Belgium, 1942 (b/w photo) / Bridgeman Images

SZT2995645: Forced laborers in the break, 1942 (b/w photo) / Bridgeman Images

SZT2995657: Winston Churchill and William Mackenzie King, 1929 (b/w photo) / Bridgeman Images

SZT2995666: Winston Churchill, 1942 (b/w photo) / Bridgeman Images

SZT2995714: Heinrich George and Fritz Kortner in 'The Other', 1930 (b/w photo) / Bridgeman Images

SZT2995720: Heinrich George and Oskar Sima in 'The Other', 1930 (b/w photo) / Bridgeman Images

SZT2995446: Emperor Wilhelm II. steps off with Prince George the front of the honorary company, 1907 (b/w photo) / Bridgeman Images

SZT2995449: Mountaineers at breakfast (b/w photo) / Bridgeman Images

SZT2995452: Mountaineers on a rock face (b/w photo) / Bridgeman Images

SZT2995473: Henriette d'Angeville in mountaineering costume (b/w photo) / Bridgeman Images

SZT2995482: Kaiser Wilhelm II., 1914 (b/w photo) / Bridgeman Images

SZT2995500: Autogyro at an airfield (b/w photo) / Bridgeman Images

SZT2995518: Participants of a Himalaya Expedition, 1938 (b/w photo) / Bridgeman Images

SZT2995527: Eskimos in the canoe near Philadelphia, 1932 (b/w photo) / Bridgeman Images

SZT2995536: Maurice Maeterlinck (b/w photo) / Bridgeman Images

SZT2995542: Verner von Heidenstam, 1939 (b/w photo) / Bridgeman Images

SZT2995548: John Galsworthy (b/w photo) / Bridgeman Images

SZT2995590: Wolfgang von Gronau in Japan, 1932 (b/w photo) / Bridgeman Images

SZT2995596: Wolfgang von Gronau in Chicago, 1931 (b/w photo) / Bridgeman Images

SZT2995611: Female forced laborers wash themselves, 1943 (b/w photo) / Bridgeman Images

SZT2995635: Forced laborers before leaving to Germany, 1943 (b/w photo) / Bridgeman Images

SZT2995662: Winston Churchill, 1940 (b/w photo) / Bridgeman Images

SZT2995665: Winston Churchill, 1939 (b/w photo) / Bridgeman Images

SZT2995689: Heinrich George and Friedrich Arenhoevel at the rehearsal of the radio play 'Werkmeister Ohle', 1933 (b/w photo) / Bridgeman Images

SZT2993749: Gustaf Gruendgens and Emmy Sonnemann (b/w photo) / Bridgeman Images

SZT2993764: Karl Kraus (b/w photo) / Bridgeman Images

SZT2993774: Model of the 'worker' by Prof. Jukoff (b/w photo) / Bridgeman Images

SZT2993843: Sculpture by Schmid Ehmen (b/w photo) / Bridgeman Images

SZT2993888: Scott's expedition ship 'Terra Nova', 1909 (b/w photo) / Bridgeman Images