I think everyone here is still missing the point - and no, I was not trying to be rude, just trying to offer a little practical advice. They're not going to have 10-12 days to "explore several countries." Their trip is going to be 10-12 days. Let's be generous and say it's 12 days (if it's 10 days - an incredibly short trip to Europe, by the way - then subtract 2 more days from all that follows). A 12-day trip gives you 10 days in Europe at best, maybe less, depending on connections. So lets say the OP has 10 full days there, and we'll be generous and assume they're functional on their first day after arrival. They're going there to visit someone - that seems to be the primary purpose of the trip. Presumably they are going to want to spend at least a few days with that someone. Subtract those days from the 10 whole days they have in Europe. At best, they're down to - what, 6 or 7 days available for "exploring a few other countries". At best. My point was (and still is) that it's probably unrealistic to expect to "explore a few other countries" in just a handful of days. Many first-time visitors to Europe schedule trips like : Day 1, fly from US to Europe, spend the afternoon seeing City #1. Day 2: See country #2, move on to country 3. Day 3: See country #3...etc. I'm suggesting that a trip of 10-12 days, which includes a visit to someone who lives there, should be planned with realistic expectations of what is and is not achievable, and what is and is not enjoyable. Exploring several countries in 3 or 4 days doesn't sound like my idea of either, but feel free to ignore my advice. No offense was intended.