Counties I've visited

Growing up, I used to have a big map of the country on my bedroom wall. Using thumbtacks color coded to the how many times I’d visited, I chronicled the places I’d been.

I don’t have that map anymore, having long since run out of room for new tacks, but I wanted to continue the tradition.

19 states to go. Airports don’t count, because they’re a place all of their own. But if they did, DTW, LAS, MCI, PHX, and SFO could all be added to the map.