You might want to spend some time browsing the exhibits at N. Ostrovskiy Literary Memorial Museum, V.V. Barsova Dacha Museum, or Sochi Maritime Terminal. Stalin's Villa, Museum of Sochi Sport Honour, and Valeriya Barsova's Dacha are well-known local landmarks worth a visit. You can watch performances at Winter Theatre, Summer Theater, and Festival Concert Hall if you're interested in local theater.