Historic England has posted some 3,600 aerial images of England, of a collection totalling more than 20,000, taken during World War II by USAAF reconnaissance aircraft. This was done as part of the crews’ training—their job was to collect aerial photos of Nazi Germany and occupied Europe, but they needed to practise first—and as so often happens in history, information collected for one purpose can pay unexpected and unrelated historical dividends: a wealth of aerial imagery from 1943 and 1944. The images are available via this interactive map. [PetaPixel]

Previously: Historic England’s Aerial Photo Explorer.