You might want to spend some time browsing the exhibits at Erarta Museum and Galleries of Contemporary Art, Cruiser Aurora, or C-189 Submarine Museum. Peter and Paul Fortress, Strelka, and Menshikov Palace are some of the notable landmarks to see in the area. You can watch performances at Baltic House Theatre, Mariinsky Theatre, and Rimsky-Korsakov Conservatory if you're interested in local theater.