The memorial sits right at the end of the road which during the war led to the gas chambers. With every trainload the majority of the new arrivals were classified by SS doctors as unfit for labor (mostly women, children and infants) and immediately sent on to the gas chambers located on either side of the monument. Cremation followed. This road witnessed much horror. On he monument are plaques with text written in the principal languages of the victims.
Looking around, as far as one can see stood wooden (gone) and brick (some still standing) barracks. Small groups of barracks were divided in sections by barbed wire and assigned to particular groups of prisoners. Those who were sent to the gas chamber were probably best off as virtually nobody survived more than 4 months after arrival. They died from a combination of starvation and hard labor. The soil surrounding the gas chambers and crematorium is saturated with human ashes. The stench of human death kept wild animals away for miles.
What people can do to others. No one nation can claim ownership of barbarism. History is full with examples. The human mind can justify anything, given the right (wrong) mix of bad ideology and charismatic authoritarian leaders. The world is full of followers all waiting for a leader. Time will come.