In late-Habsburg Vienna, the foreign ministry was on Ballhausplatz, and was referred to colloquially as "Ball'platz", the way we say "Foggy Bottom" or "the Quai d'Orsay". But does anyone recall the street where the War Ministry was located? The street name was used to refer to the Kriegsministerium the way we say "the Pentagon", but...I can't recall the street. Does anyone know? Thanks!