Actually the "Frauenkirche" was not rebuild on purpose (or so they said) to remain a reminder of the Second World War. Of course it might have been due to lack of money and goods too. However, I would have appreciated if they had not rebuilt it.
I also love that works like in the 6th picture have been kept reminding all of us of the GDR history of our town. (My place of birth and former hometown. :))