The State Russian Museum, formerly the Russian Museum of His Imperial Majesty Alexander III (Russian: Русский Музей Императора Александра III), on Arts Square in Saint Petersburg, is the world's largest depository of Russian fine art.
It is also one of the largest art museums in the world with total area over 30 hectares.
The museum was established on April 13, 1895, upon enthronement of the emperor Nicholas II to commemorate his father, Alexander III. Its original collection was composed of artworks taken from the Hermitage Museum, Alexander Palace, and the Imperial Academy of Arts. The grand opening took place on the 17 of March, 1898.
Today the collection shows Russian art from the 10th century up to the 21st century, covering all genres from the old Russian icon painting to contemporary art.
According to en.wikipedia