https://www.bbc.com/news/magazine-13359064 https://www.bbc.com/news/magazine-13359064 British intelligence used overlapping photography to create a 3D map of o

https://www.bbc.com/news/magazine-13359064 https://www.bbc.com/news/magazine-13359064 British intelligence used overlapping photography to create a 3D map of occupied Europe during WW2. In more recent times, the maps were used to identify possible archaeological sites in Scotland.