I have visited North Korea, Iran, Afghanistan and Iraq (and 136 other countries) as a tourist. AMA
It is a goal of mine to eventually visit every country in the world and I am currently about 70% of the way there. If using the Travelers Century Club list of places, I have now been to 184.
Here is a map of the places I have visited. Green = overnight, red = transit, yellow = day trip, orange = visiting in 2013. http://i.imgur.com/VaM14jk.jpg
I did an AMA a few years back. I have visited 30 new countries since then including Afghanistan, Iran and Iraq. http://www.reddit.com/r/IAmA/comments/dyho7/iama_travel_junkie_i_have_visited_150/