From Bill Bryson's Neither Here Nor There: Travels in Europe: "You know you are entering the German-speaking part of Switzerland because all the towns have names that sound like someone talking with his mouth full of bread: Thun, Leuk, Bülach, Plaffeien, Flims, Gstaad, Pfäffikon, Linthal, Thusis, Fluelin, Thalwil."