I've been to:
Washington (You know, because I live there)
Oregon (Right next to Washington)
Montana (Glacier national park)
Minnesota (Grandparents live there)
Wisconsin (Family cabin and other grandparents are also there)
Texas (Grandparents used to live there)
Illinois (I went to Chicago a long time ago)
Washington, DC. (trip)
California (Disney land)
Florida (trip)
I went to most of these locations when I was really young. I don't travel much outside of places in my state and seeing my grandparents. I'm not counting states I've driven through, just places I stayed in, and the list may be incomplete.