Lavaux is a region in the canton of Vaud in Switzerland. It consist of 830 hectares of terraced wineyards that stretch for about 30 km along the south-facing northern shores of Lake Geneva. Although there is some evidence that vines were grown in the area in Roman times, the actual vine terraces can be traced back to the 11th century, when Benedictine and Cistercian monasteries controlled the area. Since July 2007, the Lavaux is one of the UNESCO World Heritage Sites.