On the positive side, the people of Warsaw demanded that the original city be rebuilt. It was a major undertaking and took most of a decade to accomplish. The new version of the original walled city is remarkable in that it is very close to the original city; rebuilt using photographs, people's memories, drawings, and old technical documents.
It is an amazing achievement.
The world must never forget; the world cannot allow such brutalities to occur again.
The intent of Auschwitz was not a death camp. At least at first, it was a holding center and a work camp. Both Jews and Polish political prisoners were brought to Auschwitz by rail. The Birkenau camp was built to be a mass murder death camp. Prisoners were sent to Birkenau from Auschwitz to be killed.