overview opening hours Holešovice, a district that is rapidly becoming the epicenter of contemporary art, has another important point of reference. Bold Gallery is a project of the renowned gallerist Oldřich Hejtmánek and it provides space almost exclusively for contemporary authors. opening hours january—december mon closed tue—fri 14:00—18:00 sat 11:00—18:00 sun closed Arrangements can be made for an out-of-hours visit. more about opening hours opening hours january—december mon closed tue—fri 14:00—18:00 sat 11:00—18:00 sun closed Arrangements can be made for an out-of-hours visit.