The Isaac Synagogue, also known as the Izaak Synagogue, is a historic Jewish place of worship located at 18 Kupa Street in Kraków’s Kazimierz district. Established in 1644 by Izaak Jakubowicz, a wealthy banker to King Ladislaus IV, it is considered one of the most architecturally significant synagogues in the city. Designed in the early Baroque style by architect Francesco Olivierri, the synagogue features a vaulted ceiling adorned with decorative arabesques and a spacious interior.
During World War II, the synagogue suffered significant damage, including the destruction of its interior furnishings. After the war, it was repurposed for various uses, including as a sculpture and conservation atelier and later as a theater workshop. In 1989, following the fall of communism in Poland, the building was returned to the Jewish community and has since been restored to its original function as an Orthodox synagogue. Visitors can explore the synagogue’s rich history and architecture. It is open to the public, with visiting hours typically from 10:00 AM to 6:00 PM daily. Admission fees are 20 PLN for adults and 10 PLN for concessions. Guided tours are available upon request.