Tournai (in Dutch Doornik) is located in the Wallonia region of Belgium, in the basin of the River Scheldt. Tournai is considered to be one of the most important cultural sites in Belgium. The mixed Romanesque- and Gothic-style cathedral of Notre Dame de Tournai and the belfry, the oldest in Belgium, have been jointly designated by UNESCO as a World Heritage Site. Inside the cathedral, the Châsse de Notre-Dame flamande, a beautifully ornate 12th-century reliquary, gives witness to Tournai's wealth in the Middle Ages. At the time we visited Tournai the most parts of the cathedral were inaccessible due to restauration acitivities. Other places of interest are the 13th-century Scheldt bridge (Pont-des-Trous) and the main square (Grand'Place), as well as several old city gates, historic warehouses, and a variety of museums. On rue Barre-St-Brice are two of the oldest private houses in Europe, dating from between 1175 and 1200 and built in the Romanesque style, while the rue des Jésuites includes a Gothic house from the 13th century.