You might want to spend some time browsing the exhibits at Russian Museum, Faberge Museum, or Anna Akhmatova Museum at the Fountain House. Great Gostiny Dvor, St. Michael's Castle, and Alexandrinsky Theatre are landmarks that you won't want to miss. You can watch performances at St. Petersburg Philharmonia, Mikhailovsky Theatre, and St. Petersburg Comedy Theatre Akimov if you're interested in local theater.