NonnweilerNonnweiler is a municipality in the district of Sankt Wendel, in Saarland, Germany.WWW nonnweiler.deFB GemeindeNonnweilerOverviewIt is situated approximately 20 km northwest of Sankt Wendel, and 30 km southeast of Trier. The village is well known for the "Hillfort of Otzenhausen", a huge wall of Celtic origin.