You'll want to browse the collections at Museum of Water, Museum of the Defense and Siege of Leningrad, and Faberge Museum. Explore landmarks like Smolny Cathedral, Tauride Palace, and Bolshoi Saint Petersburg State Circus. You can watch performances at Oktyabrskiy Big Concert Hall, Alexandrinsky Theatre, and Rimsky-Korsakov Conservatory if you're interested in local theater.