Wolfswinkel paper mill
The Wolfswinkel-Spechthausen paper mill produced the famous Spechthausen handmade paper, a brand which went back to 1781 when it was given the seal of approval by Frederick the Great.
Spechthausen provided the paper for Operation Bernhard, a dastardly plan hatched by the Nazis to destabilize the British economy during the war using forged banknotes made the master forger Adolf Burger in the nearby Sachsenhausen concentration camp.
But the mill was closed down in 1994 and it has since been taken over by monsters. Photos below from 2012.