An excellent question…
Countries that I've visited — for long enough to sleep a night, and not just be passing through in transit — are:AU, CH, CN, ES, FR, GB, IE, IT, JE, NZ, PT, VN, ZA.
With apologies to Cornwall, England, Northern Ireland, I'm not sure if you should be seperately represented in that list.
The following are all the places referenced in documents on this website. Places are generally referred to in relation to their "nearest airport." Maybe soon, in my copious spare time, I will index the journal entries and photos so that you can find which one was near which location.ACO