Rievaulx Abbey ree-VOH is a former Cistercian abbey in Rievaulx, near Helmsley in the North York Moors National Park, North Yorkshire, England. Headed by the Abbot of Rievaulx, it was one of the wealthiest abbeys in England until it was dissolved by Henry VIII of England in 1538. Its ruins are a tourist attraction, owned and maintained by English Heritage.