My advice is not to include more but maybe less so you can really enjoy where you go. Two weeks fly by when you are in Europe, there's so much to see and do and experience. My advice is try Rick Steves' website and books. He has a chart in his book Europe through the Back door or website that advises what you should see given certain time frames in certain countries. It gives you a more realistic idea of how much you can do in the time period that you are there. His website has lots of tips including a travel helpline. Good luck!