So far 13. I remembered more after I voted 10. I need to travel more. A good chunk of those were with the military so didnt see much of the country on foot. My favorite so far was probably South Korea. Spent a year there and loved it. Crete might honestly be better but I had a bit less free time to experience it well. Id go back in a heartbeat though. Iraq actually has pretty nice scenery in places.
Trying is the first step towards failure, so just dont give it a shot and you cant dissapoint.