Hermitage Russia Saint-Petersburg.

One of the beautiest , oldest and largest museums of the world. It has been opened  in 1852. Catherine the Great started her collection for museum in 1764. Its really gorgeuos place . If you are going to visit Saint-Petersburg you have to visit Hermitage!

Petrgof :
http://believeingood.blogspot.com/2011/12/petergofsaint-petersburg.html