You might want to spend some time browsing the exhibits at Russian Museum, Faberge Museum, or Alexander Pushkin Museum and Memorial Apartment. Great Gostiny Dvor, Singer Building, and Alexandrinsky Theatre are landmarks that you won't want to miss. You can watch performances at Oktyabrskiy Big Concert Hall, Mariinsky Theatre, and St. Petersburg Comedy Theatre Akimov if you're interested in local theater.