You'll want to browse the collections at Gulag History Museum, Moscow Museum of Modern Art, and Nemirovich-Danchenko's Apartment Museum. Sights like VTB Arena, Central Academic Theatre of the Russian Army, and Lenkom Theatre are must-sees while exploring the area. You can watch performances at Obraztsov Puppet Theatre, Hermitage Moscow Theater, and Sphere Moscow Drama Theater if you're interested in local theater.