I've been to most of the States; however, I have yet to visit Hawaii and I am missing a handful of the southern States. My parents loved to take vacations and go camping, especially when it came to visiting the national parks. I have been lucky enough to have had the opportunity to travel "from sea to shining sea" twice - once by car and another time on Amtrak. Great memories.
Bonus: I also added a few of the Canadian Providences and Territories I have visited, too.