DW Travel - The Roman city gate, the Porta Nigra, is both a Trier city landmark and a UNESCO World Heritage Site. It was built from 170 AD onwards. During the rule
![HD wallpaper: trier, porta nigra, mosel, architecture, built structure, building exterior | Wallpaper Flare HD wallpaper: trier, porta nigra, mosel, architecture, built structure, building exterior | Wallpaper Flare](https://c1.wallpaperflare.com/preview/424/267/743/trier-porta-nigra-mosel.jpg)
HD wallpaper: trier, porta nigra, mosel, architecture, built structure, building exterior | Wallpaper Flare
![19th-century illustration of Porta Nigra in Trier, Germany. Published in Systematischer Bilder-Atlas zum Conversations-Lexikon, Ikonographische Encykl Stock Photo - Alamy 19th-century illustration of Porta Nigra in Trier, Germany. Published in Systematischer Bilder-Atlas zum Conversations-Lexikon, Ikonographische Encykl Stock Photo - Alamy](https://c8.alamy.com/comp/2F20888/19th-century-illustration-of-porta-nigra-in-trier-germany-published-in-systematischer-bilder-atlas-zum-conversations-lexikon-ikonographische-encykl-2F20888.jpg)
19th-century illustration of Porta Nigra in Trier, Germany. Published in Systematischer Bilder-Atlas zum Conversations-Lexikon, Ikonographische Encykl Stock Photo - Alamy
![The Porta Nigra In Trier On The Moselle Stock Photo - Download Image Now - Trier, Porta Nigra, Germany - iStock The Porta Nigra In Trier On The Moselle Stock Photo - Download Image Now - Trier, Porta Nigra, Germany - iStock](https://media.istockphoto.com/id/535478015/photo/the-porta-nigra-in-trier-on-the-moselle.jpg?s=612x612&w=0&k=20&c=7Gl3BLzyDPZZIvHJyzZfvKtsvCVXG44fWgbu_hxYWLU=)