People lay down in a pedestrian zone as part of an art project in remembrance of the 528 victims of the "Katzbach" Nazi concentration camp, in Frankfurt, March 24, 2014. The inmates of the Katzbach concentration camp, a part of the former Adler industrial factory, were forced into a death march to the concentration camps of Buchenwald and Dachau on March 24th 1945. Some 528 victims of Katzbach are buried at Frankfurt's central cemetery. (Kai Pfaffenbach/Reuters)

The origins of the bottom left picture were not immediately clear. However, the bottom right picture is actually of victims of an earthquake and building collapses in central Italy in 2009, according to reports.

This report came from the German outlet Focus Online on April 11, 2009, about the hundreds that perished in the quake and aftermath: