C-189 Submarine Museum, Erarta Museum and Galleries of Contemporary Art, and Pushkin Flat-Museum feature a variety of fascinating exhibits to see while you're in town. Sights like Saint Petersburg Conservatory, St. Nicholas' Naval Cathedral, and Yusupov Palace are must-sees while exploring the area. You can watch performances at Mariinsky Theatre, Alexandrinsky Theatre, and Oktyabrskiy Big Concert Hall if you're interested in local theater.