Scott -- Domaine Imperial, though a very interesting place (and the only Pete Dye course in Europe) is over 250km from Zurich. You should note that within the same range you could get to Strasbourg, Stuttgart, Milan and most of the way to Munich. I haven't worked out what golf comes into range in those directions, but it does put you at the heart of Europe. You might be best largely forgetting golf and concentrating on seeing some of Europe's great cities.