The Most Precious Items were Stored Here
This reinforced section of the art bunker housed precious religious art from Poland. One of Poland's greatest treasures was the Altarpiece of Veit Stoss. When Germany invaded Poland in 1939 the Poles dismantled the altarpiece and hid it in crates. Somehow the Nazis discovered its whereabouts and moved it to "safety" in Nuremberg. Considering the Nazi hatred of the Poles I'm a little surprised it wasn't destroyed. The Poles got it back after the War in 1946. Today it is on display in St. Mary's Basilica in Krakow.