Trier is a city in western Germany, known for its rich history and well-preserved Roman architecture. Founded around 16 BC, it is often considered the oldest city in Germany. Notable landmarks include the Porta Nigra, a large Roman city gate, and the Roman Amphitheater, which once hosted gladiatorial games. The city is situated along the Moselle River and is surrounded by picturesque vineyards. Trier is also recognized as a center for wine production, particularly Riesling. Its historical significance and beautiful scenery make it a popular destination for tourists and history enthusiasts alike.