This article is from the Europe FAQ, by Yves Bellefeuille firstname.lastname@example.org with help from Martin Rich M.G.Rich@city.ac.uk.
Whether you need a visa or not depends on your nationality. The only
reliable source of visa information is a consulate of the country you're
planning to visit. You'll find a list of foreign consulate offices in
the USA at:
In other countries, your ministry of external affairs or foreign
relations will be able to tell you the locations of consulate offices.
There's a list of visa requirements for US citizens at:
Please note that this list is for US citizens only. It's still a good
idea to check with the consulate of the country you're visiting: these
lists are sometimes out of date.