Bordering Belgium and the Netherlands, Aachen is the westernmost city in Germany and was a favoured destination of the European emperor Charlemagne. The city as we know it today has kept a lot of the medieval buildings and historic sights as a tribute to Aachen’s rich history. If you want to take up car hire in Aachen then all these sights and many more can be easily reached; drive up to Aachen Cathedral,– a UNESCO World Heritage Site– where Charlemagne himself was crowned along with dozens of other monarchs. Its gorgeous architecture and stunning interiors make for an enthralling trip.