A country I'd like to visit

Definitely is hard to choose just one country, I want to visit many countries. But if you tell me now that you invite me and I choose the place, I'd like to visit Russia, I think is a magic place.
I choose Russia because I liked to hear about its history when I was in high school. I really like history, but universal history is my favorite, and Russia is important part of this. I know is the most extensive country of the world, many years ago was an agricultural country principally and now is more developed. And has many influence in the whole world, is very powerful, so is a global power.
When I go there I'd like to make a trip in transiberian train, that cross the country from Moscu to Pacific ocean and connect  europe Russia with far east Russian. I think is a unique experience.
I just want to visit in holidays, I don't want to work or live there, but if I have to do it, first I would like to learn the language, because is beautiful but complicated.