The Castle of Ecaussinnes-Lalaing was built in the 12th century by Count Baudouin V of Hainaut and is a magnificent example of medieval architecture, passed down to us over the centuries. The castle is still inhabited, but a large part of it is open to visitors as a museum. Here you can explore the furnished rooms (the great drawing-room, the sick room and the oratory); the medieval section (the armoury, the dungeon and the old kitchen); the fine gothic chapel with its masterpieces of religious art; and a wide variety of collections of interesting artefacts, including porcelain, ceramics, glassware, paintings, coins and seals.