german second world war bunker

1940 1944 1945 abandoned american architecture army artillery atlantic baie battery bay beach beacon beautiful blockhaus blockhouse blue boat bunker canal cannon channel cloud coast coastal concrete danger dune emplacement europe european fortification fortress france freedom french german grass gun harbor harbour hidden historic hourdel landscape large lighthouse maritime military natural nature nazi normandy north ocean picardy point port river ruin saint sand sea seascape seaside second sky somme sommewar storm summer war water wave weather wide wind world wwii