Preview The Roman Porta Nigra gate, Trier, Rhineland-Palatinate, Germany, Europe, PublicGround Image ID: 832-368538 Artist: Wilfried Wirth Purchase a commercial license Buy framed prints & more from our print store ancient civilization architecture blue sky building city gate daytime exterior view gate german historic historic history landmark nobody old outdoors roman roman civilization roman civilization sights tourist attraction unesco world heritage site unesco world heritage site