Hevelianum

Set in the restored buildings of the old Gradowa Hill fort in Gdańsk, this is a science and history centre built around interactive permanent exhibitions. They cover physics (Z energią!), history (the Time Machine shows), mathematics (Łamigłówka) and geography (Dookoła Świata). Children aged 3 to 9 have their own workshop space, the Warsztat Wyobraźni, which makes it a good stop for families.