This is a map of all the countries I've visited in Europe -- 14 countries or 27%.

Makes me feel better, I've covered a lot of Europe :)

Let's play a little with this website.

This is a map of European countries I'd still like to visit :

Norway, Iceland, Denmark, Portugal, Ireland, Northern Ireland, Wales, Scotland, Switzerland, Greece, Turkey and Bulgaria.

That's 12 more countries or 23% (although they're counting Northern Ireland, Wales and Scotland as separate countries).

And here's the ultimate wishlist of the world countries :

That would make 78 countries or 34%.