The State Hermitage Museum of St Petersburg is the second-largest art museum in the world. Founded by Catherine the Great, with its main entrance in the former Winter Palace, the museum owns over 1 million works of art including paintings by Raphael, Michelangelo, Rembrandt, Van Gogh, and Picasso. A must-see for any art lover, it’s recommended that visitors take a guided tour so they don’t miss anything in this vast museum complex.