About Aachen
Aachen, also known as Bad Aachen, is a spa and border town in North Rhine-Westphalia, Germany. Aachen was a residence of Charlemagne, and later the coronation place for German kings. Aachen is the westernmost city of Germany, on its borders with Belgium and the Netherlands, 61 km (38 mi) west-southwest of Cologne. Aachen and the surrounding area belongs to a temperate climate zone, with humid weather, mild winters, and warm summers.