Which UNESCO World Heritage Site in the Mosel Valley, Germany, is known for its Roman architecture incuding the Porta Nigra, the best-preserved Roman city gate north of the Alps?
Trier-Ruwer Tryer Trier-Zewen Trier Treves Tréier Trier-Euren Treverensis UN/LOCODE:DETRI Trier valley Ruwer (suburb) Ruwer (Trier) Trier Valley Trier-Ehrang/Quint Trier-Ehrang Trier, Germany Trier-Biewer Trier-West/Pallien
trier ehrang quint trier ehrang tréier un locode detri trier biewer trier trier zewen tryer trier ruwer treves treverensis trier valley ruwer suburb trier germany trier west pallien trier euren ruwer trier
trier
WikipediaEntity
Trier