I just found these nifty pics of the "Regierungsbunker" that was built in the 60's as a nuclear bombshelter:
http://einestages.spiegel.de/static/topicalbumgallery/1613/deutschlands_geheimer_superbunker.html
Unfortunately the whole article is in German, but you might enjoy the pictures as well.
Facts:
The bunker was 83.000 sqare metres big and had 5 self-sufficient zones with 936 beds, 897 offices, 25.000 doors, 5 command posts and hospitals, a fire service, a church... well it did cost several billion Euros to built but it wouldn't have survived a direct hit by a warhead with more then 20 kilotons of tnt. So basically it was useless since most warheads were significantly bigger by that time and spies from the GDR already infiltrated the bunker while it was being constructed.
http://einestages.spiegel.de/static/topicalbumgallery/1613/deutschlands_geheimer_superbunker.html

Unfortunately the whole article is in German, but you might enjoy the pictures as well.
Facts:
The bunker was 83.000 sqare metres big and had 5 self-sufficient zones with 936 beds, 897 offices, 25.000 doors, 5 command posts and hospitals, a fire service, a church... well it did cost several billion Euros to built but it wouldn't have survived a direct hit by a warhead with more then 20 kilotons of tnt. So basically it was useless since most warheads were significantly bigger by that time and spies from the GDR already infiltrated the bunker while it was being constructed.




