it's not only the countries you travel visa-free to, it's also how they treat you once you're there... i once traveled through italy with an american friend and

it's not only the countries you travel visa-free to, it's also how they treat you once you're there... i once traveled through italy with an american friend and was surprised at the hassle they made of the border crossing of a nighttrain simply due to his passport... i was able to sleep on and he had to answer questions this was back in 2000. at the same time consider countries like syria where an american passport might not be as nice as an EU one.