- youtube.com channel/UC4_YgjBsPxIECPWNpESeSTg
- http://sacred-destinations.com germany/trier-porta-nigraThe oldest defensive structure in Germany, the Porta Nigra was erected in about 180 AD when the Roman city was surrounded by walls.
- historyhit.com locations/porta-nigra/Porta Nigra, translated as the “Black Gate” is a magnificently well-preserved second century Roman gate in Trier, Germany.
- atlasobscura.com places/porta-nigraBuilt in grey sandstone just before the year 200, Trier’s Porta Nigra represents the last bastion of the Roman Empire’s presence north of the Alps.
- buyukansiklopedi.com Porta_Nigra2024 hakkında güncel bilgilerle Porta Nigra hakkında bilmediğiniz her şey. Porta Nigra'nun tanımı ve terimi.
- instagram.com porta_nigra_band/6 Followers, 0 Following, 0 Posts - See Instagram photos and videos from Porta Nigra (@porta_nigra_band).
- bega.com en/references/porta-nigra-trier/The Romans built the Porta Nigra from more than 7000 stone blocks in 170 AD. ... Today, the Porta Nigra is home to the Roman city’s central information centre.
- trier-info.de en/places-of-interest/porta-nigraWhen the Romans laid the foundation stone for the Porta Nigra in AD 170, they would never have imagined how successful it would be.
- http://turkcewikipedia.com porta-nigraTrier Porta Nigra BW 1.JPG. Kuzeyden Porta Nigra'nın görünüşü. Eski ad. ... Porta Nigra adı zamanla kararan taşlarından dolayı verilmiştir.