Well, not really just one or the other, but we only have four nights on that portion of the trip, and while I now have it that we will spend one night in Warsaw and three in Krakow, I'm wondering if I should make it two nights at each place so we could get a good taste of each. It's just that I've heard Krakow is a cooler city and more authentic, and then there is also Auschwitz that we plant to see there. But just lately I've heard Warsaw is having a real resurgence, so if anyone has any experience with them, give me the good word.