Principal: Description The heart of the empire revolved around cities as genuinely European as Brussels, Luxembourg, Liege, Aachen, Maastricht and Leuven. Some of them still hold a tremendous European tradition of great significance, hosting many of the political, judicial and cultural institutions of the European Union. Information Category: Rutas de los Países BajosCiudades: City of BrusselsLovainaHasseltMaastrichtAquisgránLiejaLuxemburgoBastogneNamur Image gallery