I recently went to europe and saw switzerland austria and germany. The one day while i was in austria i went to the nazi consetration camp "Dachau" which was the first consentration camp and was a model for the others during WWII. My tour got there at the time it had opened around 9:00 am and we were able to go around and walk so i went to walk around and went to the crematorium which is still standing with the original ovens. On this perticular day it was pretty warm outside and i had a sweatshirt around my waist. as i walked throught the gates and back to the ovens. i was noticing that it got very very quiet and peaceful. then i walked into where they would keep the bodies and i swear it droped 30degrees it got really cold and i swear i could hear a bunch of voices at one time. To this day ill never forget it.