Medieval Nuremberg is especially pretty after modest Stuttgart. And after some Frankfurt am Main, you can’t come here at all: you can go blind from beauty. Few things adorn the city like a five-kilometer fortress wall of the 15th century with a moat, gates and towers. In addition, modern infrastructure is successfully woven into the Nuremberg Wall: a promenade has been organized on the site of the moat, and a subway runs inside the outer wall.