Erarta Museum and Galleries of Contemporary Art, Pushkin Flat-Museum, and Russian Museum feature a variety of fascinating exhibits to see while you're in town. While you're exploring, swing by St. Petersburg Academy of Fine Arts, Yusupov Palace, and St. Isaac's Cathedral to learn a bit about the area. You can watch performances at Mariinsky Theatre, Mikhailovsky Theatre, and Tovstonogov Bolshoi Drama Theater if you're interested in local theater.