You'll want to browse the collections at Stalin's Bunker Museum, The Kremlin in Izmailovo, and Izmaylovo Estate. While you're exploring, swing by Catherine's Palace, Arch of the Main Entrance of VDNH, and Church of St. Sergius of Radonezh to learn a bit about the area. You can watch performances at Izmaylovo Concert Hall, Soprichastnost Moscow Drama Theater, and Cosmos Concert Hall if you're interested in local theater.