I suppose as far as concebtration camps go, you have some points - however the death camps in Poland you may find considerably more disturbing. Those would be: Auschwitz-Birkenau, Treblinka, Belzec, Sobibor, Chelmno, and Majdanek.
Agree,
The death camps of Eastern Europe have the stench of Hell pervading them. The crimes of the Einsatzgruppen and of the killing camps are a grave stain upon humanity. Move your boot through the bone fragments about Treblinka and you will begin to understand.