You might want to spend some time browsing the exhibits at Museum of Water, Anna Akhmatova Museum at the Fountain House, or Museum of the Defense and Siege of Leningrad. Tauride Palace, Bolshoi Saint Petersburg State Circus, and Saint Alexander Nevsky Monastery are notable landmarks to explore if you're in the area. You can watch performances at Leningrad Center, Oktyabrskiy Big Concert Hall, and Alexandrinsky Theatre if you're interested in local theater.