This morning you'll make a highlight visit to the world-famous Hermitage, housing more than four million works of art. It ranks among one of the largest and oldest museums of the world, founded in 1764 by Catherine the Great. Admire the world-famous masterpieces by Leonardo da Vinci, Rafael, Titian, Rembrandt, El Greco, Velasquez, Rubens, Van Dyck, Goya, and French Impressionists. The Hermitage occupies five buildings, the largest is the Winter Palace, the former residence of Russian Emperors. Spend the rest of the day at leisure exploring the city on your own or perhaps you may choose to take an optional tour to Petrodvorets, Peterhof Summer Palace of Peter the Great. Tonight, enjoy dinner.