A city with a lot of beautiful buildings is St Petersburg in Russia. It's amazing! I have wanted to go to that city for a ong time now. If you like churches, architecture and beautiful palaces you have to go here! There is a beautiful palace called "Winter Palace" here lived the las imperial family, family Romanow until the revolution. The Winter Palace is a "must do" if you visit St Petersburg. Actually the list over beautiful things to see in this city is long so I recommend you to be there for 2 weeks or more. I would have been there so long.