You'll want to browse the collections at Russian State Museum of the Arctic and Antarctic, Anna Akhmatova Museum at the Fountain House, and Faberge Museum. Anichkov Palace, Alexandrinsky Theatre, and Tauride Palace are notable landmarks to explore if you're in the area. You can watch performances at Oktyabrskiy Big Concert Hall, Leningrad Center, and Bolshoi Saint Petersburg State Circus if you're interested in local theater.