NORFOLK, ENGLAND—Aerial photographs taken of Bircham Newton in 1946 show that what looked like drainage ditches from the ground were actually trenches dug by soldiers training for World War I battlefields. The complex system includes supply lines, small trenches for fighting, and a circular feature with two entrances that may have been a command center. Landowner Nigel Day, who runs a camp site, found the trenches and contacted Norfolk County Council’s archaeology department. “I want to have them dug out by professional archaeologists and then restore them to their original World War I condition,” he told BBC News.