You don't. The download for the Auschwitz complex is in my content titled Auschwitz-Birkenau. This project was 4 years ago and I wasn't very experienced with Planet Minecraft yet. If you want to try and make a model of this building just go to 3d warehouse. You can also find blueprints on the internet of what it looked like. It was the most depressing part of the project. I cannot even begin to access the chamber because it feels so real and I get this sickening feeling. I don't know why I cannot make things that aren't terrible.