Bendlerblock!
http://en.wikipedia.org/wiki/Bendlerblock properly called the Bendlerstraße, now renamed in honor of Stauffenberg as Stauffenbergstraße.
Originally built for the Reich Navy Office, it served as the Reichwehr HQ during the Weimar Republic and was the execution grounds for the Wolfsshcanze conspirators. The German government, well known for it's anti-Sciencetology stance is refusing to let the producers film the firing squad scene at the Bendelrblock.
While I consider Sciencetologists to be a bit kooky (sorry if anyone is offended), I'm not sure the origin of the vehemence towards Tom Cruise and his chosen "religion" by the German government. If you need a reason to dislike Mr. Cruise, there are ample things to choose from. As for his acting ability, I'm no supporter, but I quite enjoyed Risky Business, and Rainman was sublime.