overview opening hours The Insurance company Kooperativa’s art collection includes some very valuable and beautiful works by Czech artists, from the 18th century to the present. Regular thematic exhibitions are open to the public. opening hours january—december mon closed tue—fri 12:00—18:00 sat—sun 10:00—18:00 more about opening hours opening hours january—december mon closed tue—fri 12:00—18:00 sat—sun 10:00—18:00