Preview The Black Gate (Porta Nigra), Trier, UNESCO World Heritage Site, Rhineland, Mosel Valley, Germany, Europe Image ID: 834-3745 Artist: Eurasia Purchase a commercial license Buy framed prints & more from our print store travel destination photography color image horizontal day outdoors architecture archaeology roman exteriors building exterior gate gates gateway gateways black gate porta nigra trier cities city location landmark landmarks world heritage site rhineland rheinland germany europe