Mariawald Abbey is a monastery of the Trappists, located above the village of Heimbach, in the district of Düren in the Eifel, in the forests around Mount Kermeter, North Rhine-Westphalia, Germany. Mariawald Abbey is the only extant men's Trappist monastery in Germany. The monks follow the Rule of St. Benedict and the constitution of the Cistercians of the Strict Observance. Visitors can also stay a few days in the abbey's guesthouse, but the parts of the monastery used by the monastic community cannot be visited. The abbey runs a tavern and bookshop. It also produces and sells its own liqueur.