You might want to spend some time browsing the exhibits at Glinka National Museum Consortium of Musical Culture, Central Armed Forces Museum, or Gulag History Museum. Central Academic Theatre of the Russian Army, Lenkom Theatre, and Yeliseyev Grocery Store are landmarks that you won't want to miss. You can watch performances at Tchaikovsky Concert Hall, Tik Tak Theater, and Sphere Moscow Drama Theater if you're interested in local theater.