Aachen is an overall beautiful city, with green areas, picturesque streets and a lively atmosphere. Of course the highlight there is the Aachen Cathedral, a magnificently preserved building, that showcases the grandeur the city once had. As a Greek, the inside of the church really reminded me of Byzantine churches, with mosaics adorning the walls, while the cupola had a more western twist. Still, this is not a church that someone will expect to find in such northern latitudes. I think it is a really great roadtrip from Cologne, and if anyone finds themselves there, should drive to Aachen.