Trier, historically called Treves in English, is a city in Germany on the banks of the Moselle. It may be the oldest city in Germany, founded in or before 16 BCE (contested with Worms, Kempten, and Cologne).
Trier lies in a valley between low vine-covered hills of ruddy sandstone in the west of the state of Rhineland-Palatinate, near the border with Luxembourg and within the important Mosel wine region.
The city is the oldest seat of a Christian bishop north of the Alps. In the Middle Ages, the Archbishop of Trier was an important prince of the church, as the Archbishopric of Trier controlled land from the French border to the Rhine. The Archbishop also had great significance as one of the seven electors of the Holy Roman Empire.
Trier sits in a hollow midway along the Moselle valley, with the most significant portion of the city on the east bank of the river. Wooded and vineyard-covered slopes stretch up to the Hunsruck plateau in the south and the Eifel in the north. The border with the Grand Duchy of Luxembourg is some 15 km (9 mi) away.
The architectural remains of this glorious Roman past are still evident all over Trier. No other city in Germany has so many monuments from Roman times. UNESCO has put most of them on its World Heritage List. They include the Amphitheatre, dating back to the first century A.D., which once held audiences of up to 25 000, and the Imperial Baths ĘC in their heyday, one of the largest baths in the Roman Empire.
But Trier is not only Germany's oldest Roman city and an important Christian centre. It is also a city of wine. Its mild climate and gentle sun-kissed slopes make the city not only a popular destination for tourists and hikers, but also ideal for viticulture. The name "Mosel-Saar-Ruwer"- the three rivers whose confluence is close to Trier - is renowned as one of Germany's best wine regions, with the Riesling grape being a particular favourite for cultivation.