Please accept "Volga". I shouldn't have to type in "river" as well. I even tried it but put "river" in front of Volga, which in my view is just as good a place to put it as you did.
Same goes for Ural instead of "The Ural Mountains".
Second biggest country in Europe is Ukraine (when only counting area in Europe). France is larger when accounting for areas outside Europe, but in that case, Turkey would be larger than France.
Second biggest country in Europe is Ukraine (when only counting area in Europe). France is larger when accounting for areas outside Europe, but in that case, Turkey would be larger than France.