It was founded in 1954 by the then Abbot. It may boast of, inter alia, a large collection of militaria, numismatic collections and the only Polish 18th-century copy of the world map from the 13th century. In addition, we may find here religious objects, folk art, memorabilia of Władysław Orkan. An interesting thing are the exhibits related to the history of brewing, as the oldest brewery in Poland operates at the monastery.