The Guernsey German Underground Hospital (Ho.40) and Ammunition Store (Ho.7)
"Organisation Todt (OT) was a civil and military engineering organisation in Nazi Germany from 1933 to 1945, named for its founder, Fritz Todt, an engineer and senior Nazi. The organization was responsible for a huge range of engineering projects both in Nazi Germany and in occupied territories from France to the Soviet Union during World War II. It became notorious for using forced labour."
"The German Underground Hospital (Ho.40) and Ammunition Store (Ho.7) is the largest structural reminder of the German Occupation existing in the Channel Islands. This maze of tunnels covers an area of about 6,950 square metres (75,000 square feet). Almost invisible from the surface, except for the entrances, this vast concrete maze is built under a low hill in the heart of the Guernsey countryside."
Pictures Nikon D7200 40mm 2.8 and Huawei P20.