I am looking to kill some time (5 days) between Prague and getting to Venice for a cruise in October. I am thinking of going to Krakow and Vienna, then to Venice. I can't figure out train websites in Europe. None of the cheap airlines seem to do these routes. Is there only one train website, www.raileurope.com or are there more with different choices? Any help or suggestions on this trip are welcome as are any suggestions for a different itinerary. Thanks.