There were at least ninety prayer-houses in Kraków active before the Nazi German invasion of Poland, serving its burgeoning Jewish community of 60,000–80,000 (out of the city's total population of 237,000), established since the early 12th century.
[3] Most synagogues of Kraków were ruined during World War II by the Nazis who despoiled them of all ceremonial objects, and used them as storehouses for ammunition, firefighting equipment, and as general storage facilities.
In recent time, thanks to the efforts of the local Jewish and Polish organizations including foreign financial aid from Akiva Kahane, many synagogues and prayer-houses underwent major restorations, while others continue to serve as apartments.
[3] The synagogues of Kraków represent virtually all European architectural styles of the past millennium, including Gothic, Renaissance, Baroque, Neoclassicism and Modernism.
The exhibits are divided into four sections: synagogue furnishings and paraphernalia, Jewish rituals and festivals, the history of Kazimierz District, and the Holocaust.
On the walls, there are original oil paintings on display made by Maurycy Gottlieb, Józef Mehoffer, Tadeusz Popiel, Jerzy Potrzebowski and Jonasz Stern.