You'll want to browse the collections at Central Armed Forces Museum, Gulag History Museum, and Vasnetsov House Museum. Sights like Central Academic Theatre of the Russian Army, Alexander Goldenweiser's Memorial Flat Museum, and Stanislavski and Nemirovich-Danchenko Moscow Academic Music Theatre are must-sees while exploring the area. You can watch performances at Praktika Theater, Bolshoi Theatre, and A.R.T.O. Theater if you're interested in local theater.