You might want to spend some time browsing the exhibits at C-189 Submarine Museum, Erarta Museum and Galleries of Contemporary Art, or General Staff Building. Saint Petersburg Conservatory, Yusupov Palace, and Narva Triumphal Arch are landmarks that you won't want to miss. You can check out the local talent at Mariinsky Theatre, Alexandrinsky Theatre, and Bolshoi Saint Petersburg State Circus.