Against this wall there stood the crematory of the Risiera di San Sabba camp. The Nazis blew it up during retreating to cover up their traces. To do so, they went as far as ordering the remaining prisoners to say they were "treated well" in the camp. Which, of course, didn't occur.
The six-storey building, which now hosts the Museum, worked as the head quarters of the German and Italian soldiers, as well as the Ukrainian quislings, who run the camp.