- 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.
- 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.
- historyhit.com locations/porta-nigra/Porta Nigra, translated as the “Black Gate” is a magnificently well-preserved second century Roman gate in Trier, Germany.
- 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.
- buyukansiklopedi.com Porta_Nigra2024 hakkında güncel bilgilerle Porta Nigra hakkında bilmediğiniz her şey. Porta Nigra'nun tanımı ve terimi.
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- itinari.com location/porta-nigraDiscover the Magnificent Porta Nigra in Trier: A Roman Marvel. Trier, a charming city in Germany, is home to a remarkable historical treasure - the Porta Nigra.
- booking.com hotel/de/porta-nigra.en-gb.htmla bathroom with a walk in shower and a sink at Hotel Porta Nigra in Trier. ... Hotel Porta Nigra is located in Trier, directly at the famous Porta Nigra (Black Gate).
- web.archive.org save/https://tr.wikipedia.org/…Porta Nigra. Vikipedi, özgür ansiklopedi. Gezinti kısmına atla Arama kısmına atla. ... Porta Nigra adı zamanla kararan taşlarından dolayı verilmiştir.