Most of museums will open from 5pm till 1 am. Museums have prepared a rich accompanying program, including lectures, games, concerts, and shows. Admission to many institutions will be free on this day.

On Saturday until 5 p.m. and on Sunday, May 17, the following museums will be closed: Townhall - Museum of Poznań, Museum of Applied Arts, Museum of World Cultures, Gallery of Painting and Sculpture, Military Museum, Museum of the Greater Poland Uprising 1918-1919, Armaments Museum, Poznań Army Museum and the Archdiocesan Museum.