Built between 1942 and 1943 at the height of WWII, this 25m high above-ground air raid shelter promised protection during aerial bombardments with exterior walls over one metre thick. Known as 'Festunglazaret II' during the

Construction of this above-ground air raid shelter began at the end of 1942. Essentially shaped like a big brick, the shelter is 13 metres high, with 1.1 metre-thick walls and a 1.4 metre-thick ceiling. Deliberately disguised to blend in with the neighbo