The largest art gallery in Russia and one of the most adored art museums in the world, which boasts 353 rooms, filled with masterpieces by Raphael, Titian, Giorgione, Michelangelo, Leonardo da Vinci and others. The total number kept by the museum tallies to somewhere around 3 million. You can visit the Knights' Room where you can find a wide range of tournament, parade and hunting gear, as well as armour, edged weapons and firearms. The room of Ancient Egypt contains an Egyptian mummy. Perhaps one of the most interesting fact about the Hermitage is it's own private "army" of cats. They live in the basement of the museum and are well taken care of by the employees.