The city of Liège in Belgium’s French-speaking Wallonia region also lies on the Maas river , about 50 km away from Aachen/ a 30 minute ride in the famous Thalys train away from Aachen. Just like Maastricht, it has an old town with old squares, Romanesque churches and 17th-century mansions. Yet it also has Europe’s coolest train station (Liège-Guillemins), designed by Spanish architect Santiago Calatrava. Being a city still recovering from former industrial fame, Liège will probably not be considered a pretty city but it is an intriguing place to discover. If you are there on a Sunday, La Batte market right by the river is highly recommended.