Old Synagogue is an Orthodox Jewish synagogue in the Kazimierz district of Kraków, Poland, in Yiddish it was referred to as the Alta Shul. It is the oldest synagogue building still standing in Poland, and one of the most precious landmarks of Jewish architecture in Europe. Until the German invasion of Poland in 1939, it was one of the most important synagogues in the city as well as the main religious, social, and organizational centre of the Kraków Jewish community. In 1794 General Tadeusz Kościuszko spoke from the synagogue to gain the Jewish support in the struggle for Polish independence.