As an addendum to the Lakbayan map of the Philippines, I traced it back to a website that did one for the world and one for the US. Here are my US travel results:
create your own visited states map
I didn't include states that I have driven through. I haven't been to many southern states, although I have wanted to visit New Orleans, Savannah, and go to Memphis for the bbq festival. My dad's doing a cruise to Alaska this week, so he's got a leg up on me there. I sure hope I don't end up waiting till I'm in my 80's to see the Alaskan fjords and icebergs.