Heart-wrenching photos mark the 70th anniversary of the liberation of Auschwitz
Tuesday is International Holocaust Remembrance Day, marking the passage of 70 years since the Jan. 27, 1945, liberation of the Auschwitz-Birkenau concentration camps built and operated in occupied Poland by Nazi Germany. An estimated 960,000 million people, mostly Jews from across Europe, were killed there in gas chambers or by systematic starvation, forced labor and disease. About 200,000 camp inmates are thought to have survived the ordeal.