Trier

Trier is a city in Rhineland-Palatinate, Germany, situated on the Moselle river near the Luxembourg border. With about 110,000 inhabitants, it is one of the oldest continuously inhabited cities in Germany. It originated as Augusta Treverorum, founded by the Romans around 16 BCE, and developed as an important administrative and religious center in the Roman province of Gallia Belgica and later Germania Superior.

Trier hosts a substantial Roman architectural heritage. Notable monuments include the Porta Nigra, a well-preserved city gate; the Aula Palatina (Basilica of Constantine), a large late Roman hall; the Kaiserthermen (imperial baths); and an ancient amphitheatre. The historic core also features remnants of city walls and the Römerbrücke (Roman Bridge). In 1986, the Great Roman Monuments of Trier were inscribed as a UNESCO World Heritage Site.

The Trier Cathedral of St. Peter (Dom St. Peter) and the nearby Liebfrauenkirche represent the city’s medieval religious architecture. The cathedral is one of the oldest bishop’s seats in Germany, and the ensemble of Roman and early medieval structures underscores Trier’s long religious significance. The city’s archaeological remains contribute to its reputation as a major Roman archaeological site in northern Europe.

Today Trier is a regional hub for education, culture, and services. It is home to the University of Trier and the Trier University of Applied Sciences, as well as museums and research institutions. The Karl Marx House museum preserves the birthplace and legacy of the philosopher who was born in Trier.

Situated on the Moselle, Trier is connected by rail and road to larger German cities and neighboring Luxembourg, supporting cross-border trade and tourism.