What happens when an art historian explores a major city in the far west of North Rhine-Westphalia, known for its three tourist highlights - Printen, Kaiser Karl, and CHIO - accompanied by a photographer? They release a compact city guide that combines historical facts with unusual perspectives and interesting routes, offering a fresh look at the city and the tri-border area. As true locals, Belinda Petri and Pasca Vretinari know the spa and imperial city well and invite visitors to Aachen to step off the beaten tourist path and discover the real gems - to taste the best ice cream in town or to enjoy Sauerbraten half and half with genuine Acheners.