We are traveling from Munich to Italy- have only 6 days and so much to see. Any recommendations? We were thinking Venice for a day, then Florence 2 days, then Cinque Terre for a day, then Parma & Milan (visiting daughter in Parma and flying out of Milan, so can't skip these two). Not sure if we should cut out either Venice or Florence so we have more time in fewer cities? Also trying to figure if car or train is better.