Germany - Aachen Cathedral

With its columns of Greek and Italian marble, its bronze doors, the largest mosaic of its dome (now destroyed), the Palatine Chapel of Aachen has, from its inception, been perceived as an exceptional artistic creation. It was the first vaulted structure to be constructed north of the Alps since antiquity. It remained, during the Carolingian Renaissance and even at the beginning of the medieval period, one of the prototypes of religious architecture which led to copies or imitations (Mettlach, Nijmegen). It is an excellent and distinctive example of the family of aularian chapels based on a central plan with tribunes.