Aachen, renowned for its rich history and healing hot springs, is a gem nestled at the tripoint of Germany, Belgium, and the Netherlands. Its famous cathedral, a UNESCO World Heritage Site, stands as a testament to the city's significance, with its origins dating back to the time of Charlemagne. The addition of the Gothic chancel only adds to the architectural splendor of this historic monument, making Aachen a must-visit for those intrigued by the grandeur of medieval Europe.