Ключевые слова: 13th, ancient, arch, architecture, belgian, belgique, belgium, bridge, canal, castle, century, city, cultural, des, doornik, escaut, europe, exterior, flowing, fort, gothic, hainaut, heritage, historic, history, hole, holes, landmark, medieval, navigation, old, pont, river, riverbank, road, schelde, scheldt, sightseeing, stone, stones, street, tournai, tower, town, trous, wallonia, wallonian, wallonie, water, waterway,