Quite a unique museum in that it examines Jewish history and life from the perspective of 150 modern day photographs - taken in cemeteries, former ghetto areas and, of course, Auschwitz - in Southern Poland and the Ukraine, Five different areas:- Jewish life in ruins; Jewish culture as it once was; The Holocaust; Remembering the past; People making history today. There is also a lot of on-line personal reflections on Jewish Life in a room at the back of the museum - worth spending some time in. Also a temporary exhibition of old photographs of Jewish Krakow and Palastine. Good cafe and bookshop area and affiliated restaurant opposite (not so brilliant!). Unlike in many museums, staff were welcoming and keen to inform.
In my opinion, most definitely worth a visit when in the Jewish part of Krakow. Go off season, if possible - as I expect the museum would leave a very different impression if it were crowded.
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