Der Dresdner Zwinger is a quiet and beautiful place in the middle of the city center. It`s difficult to imagine such beautiful place being bombarded during WWII. The building complex worth by itself, but the art gallery is a plus. Must see!
I'm pretty sure "der dresdner zwinger" is in Dresden, I believe it is that rather big palace, I remember it having a beautiful garden and at night the site is enlighted so it makes the building look a bit like the palace in Versailles : )