Grand Maket Russia Interactive Museum, Erarta Museum and Galleries of Contemporary Art, and Dostoyevsky Museum feature a variety of fascinating exhibits to see while you're in town. Sights like Yusupov Palace, Bryantsev Youth Theatre, and St. Isaac's Cathedral are must-sees while exploring the area. You can catch a show at Mariinsky Theatre, Tovstonogov Bolshoi Drama Theater, and Alexandrinsky Theatre.