England/Scotland*, Germany, France, Egypt, Japan, The Netherlands, Italy, Greece, and Ireland.
*I slashed them together since they are both part of Great Brittan, and are on the same island. It wouldn't be hard to visit one whilst visiting the other, I could simply travel North to visit Scotland while in England. Shazam. That easy.
I would want to visit Japan for...well, I think that reason is pretty obvious. Egypt, Greece, and Italy are all ancient places (I'd especially like to see Rome).
The UK, Germany, France, and The Netherlands are the lands of my ancestors.