You might want to spend some time browsing the exhibits at Art4.ru Contemporary Art Museum, Modern Russian History Museum, or Gulag History Museum. Cathedral of the Immaculate Conception, Central Academic Theatre of the Russian Army, and Church of the Nativity of the Virgin in Putinki are monuments to see when you're exploring the area around Megasport Arena. You can watch performances at Tchaikovsky Concert Hall, Praktika Theater, and Obraztsov Puppet Theatre if you're interested in local theater.