1) The Kremlin is the heart of moscow and russia, isn't it?
2) When was the tower of London built?
3) what is the british museum famous for?
4) you can see tourists from france and THE united states, china and great britain in dvortsovava square.
5) there are lots of places to visit in london: westminister abbey, tower bridge, the london eye, buckingham palace.
6) the bolshoi theatre is one of the most famous theatres of the world,isn't it?