You might want to spend some time browsing the exhibits at Retro Auto Museum, The Museum of Russian Icon, or New Tretyakov Gallery - Museum of Modern Art. Palace of the Romanov Boyars, Church of St. Maxim the Confessor, and Old English Court are notable landmarks to explore if you're in the area. You can catch a show at Moscow International House of Music, Aquamarine, The Dancing Fountains Circus, and Taganka Theatre.