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