Westwall bei Simmerath

With over 18,000 bunkers, tunnels, countless trenches and anti-tank barriers, it was considered insurmountable. After the French campaign, the Germans removed all mobile weapons in order to use them elsewhere. The war in the West flared up again with the Allied landings in Normandy in 1944, but the Siegfried Line, although praised as the greatest fortification of all time, was unable to withstand the attacks.

Today, the humps are a protected monument and a refuge for many rare plants and animals.