My wife and I are being taken on a European cruise by my in-laws next summer and we are thinking about adding on a bonus vacation for ourselves at the end, since the biggest expense (planes trip to Europe from US) will already be out of the way. Does anyone have any websites/forums that they know of that can help us narrow down where we want to go? We want to spend enough time in places we want, but also want to take advantage of the situation as best as possible.