1958 - Vienna
Vienna is twinned with Belgrade (Serbia), Bratislava (Slovakia), Brno (Czech Republic), Budapest (Hungary), Ljubljana (Slovenia), Moscow (Russian Federation), Tel Aviv (Israel), Warsaw (Poland) and Zagreb (Croatia).
Vienna is twinned with Belgrade (Serbia), Bratislava (Slovakia), Brno (Czech Republic), Budapest (Hungary), Ljubljana (Slovenia), Moscow (Russian Federation), Tel Aviv (Israel), Warsaw (Poland) and Zagreb (Croatia).