Visit KL Auschwitz 1. Walk through the iron gate bearing the notorious slogan Arbeit Macht Frei. See 22 brick barracks, which were prison for hundreds of thousands of victims of the Holocaust. The most chilling is block number 11, the so-called prison within the prison. Block 11 contained special torture chambers including dark chambers or standing cells where various punishments were inflicted on prisoners. The first attempts to kill people with Zyklon B took place in this block. The only preserved crematorium and gas chamber is located at the end of the camp.  After the visit to KL Auschwitz 1, travel in the minivan to KL Auschwitz 2 Birkenau. This part of the camp is 25 times larger than Auschwitz 1 and it was the largest of the death camps. Over 1,100,000 people were murdered here. End your visit at the Memorial and pay respect to all of the victims of Nazi's genocide.