Erarta Museum and Galleries of Contemporary Art, Alexander Pushkin Museum and Memorial Apartment, and C-189 Submarine Museum feature a variety of fascinating exhibits to see while you're in town. St. Isaac's Cathedral, Admiralty Building, and Blue Bridge are some of the notable landmarks to see in the area. You can catch a show at Mariinsky Theatre, Rimsky-Korsakov Conservatory, and Alexandrinsky Theatre.