You might want to spend some time browsing the exhibits at Russian Vodka Museum, C-189 Submarine Museum, or Erarta Museum and Galleries of Contemporary Art. Saint Petersburg Conservatory, Yusupov Palace, and St. Nicholas' Naval Cathedral are notable landmarks to explore if you're in the area. You can check out the local talent at Mariinsky Theatre, Alexandrinsky Theatre, and Bolshoi Saint Petersburg State Circus.