Enjoy the view of Trier's most well-known landmark: The 4-star Mercure Hotel Trier Porta Nigra has 106 air-conditioned rooms with free WIFI. Our hotel is CCH-certified and offers an events area with five meeting rooms for your meetings or functions for up to 200 people. Arrival: The main train station is 547 yards (500 m) away and Luxembourg Airport 24.9 miles (40 km) away. If traveling by car, take the A602 and use the public garage at the hotel. The city on the Moselle now known as Trier was founded by the Romans in 16 BC as Augusta Treverorum. Trier takes pride in its nine astonishingly well-preserved Roman and medieval cultural monuments, which have made the city a UNESCO World Heritage site.