My in laws visited Auschwitz and the one in Poland (Name escapes me at the moment). They said you could literally feel the evil that still permeated the area. My BIL was a Surgical nurse and he said that these places made him nauseous.
Buchenwald. And yes, some places seem to take on an atmosphere from the events that happened there.
I’m wrong. Not Buchenwald which was in Germany.
Stutthof, Birkenau, Monowitz and others were in Poland. It was an industry.
http://en.wikipedia.org/wiki/German_camps_in_occupied_Poland_during_World_War_II