Flanders Open Monument Day is the biggest cultural one-day event in Flanders. Open Monument Day, always on the second Sunday of September, spotlights the region’s immovable heritage, focussing each
year on a specific theme. This means that every edition of Open Monument Day offers new surprises! Therefore, the Gravensteen castle too will be focussing on Music, Word and Image this year. More info is available on the website dedicated to Open Monument Day Flanders.