How many countries do you expect to visit, doing 4 / 5 countries in 15 days would seem like the best idea. Any more and you'll be on the train non-stop.. https

How many countries do you expect to visit, doing 4 / 5 countries in 15 days would seem like the best idea. Any more and you'll be on the train non-stop.. https://www.google.com/search?q=US+vs+EUROPE+size&tbm=isch&tbo=u&source=univ&sa=X https://www.google.com/search?q=US+vs+EUROPE+size&tbm=isch&t...