Haunting Pictures of Auschwitz Concentration Camps

"Arbeit Macht Frei" - this German slogan was used on the entrance gates of a number of Nazi concentration camps. It translates to 'labour makes (you) free / work sets you free'.

The following image is the main camp of Auschwitz I, which was the original base camp of the Auschwitz network of concentration camps.

The entrance to Auschwitz 2 Birkenau. Birkenau was the second camp built and it was 10 times bigger than the base camp. Birkenau was the main death camp where over a million prisoners (most of them Jeswish) were killed in gas chambers.

The entrance of Auschwitz 2 is known as The Gate House at Birkenau or The Gate of Death. This gate was built years after Auschwitz 2 was first opened and the train tracks were added even later.

This picture of the gate house was taken from inside the Birkenau camp.