This is kind of neat: a web toy that creates a map based on where one has traveled. According to it, I've visited seven countries, which is 3% of the recognized listings.
create your own visited country map or
write about it on the open travel guide My list includes the Bahamas, Canada, France, Italy, the United Kingdom (England), Vatican City, and the United States.
For what it's worth, I've visited quite a good portion of the continental US. Credit to
sascha for the link.