Oldie meme from Haldira:
create your own visited country map
or check our Venice travel guide
create your own personalized map of the USA
or check out ourCalifornia travel guide
Caveat: I have a pretty high standard for visiting states/countries. I don't count places where I've only been to the airport. I require doing something interesting (get food, spend the night, do something touristy, visit friends, etc). I'm a geography geek like that. So currently I've physically been in Finland (Helsinki airport), as well as Arizona (Phoenix airport), Michigan (Detroit airport), and up until recently, I hadn't "been" to Georgia, although I'd been thru the Atlanta airport several dozen times.