sentences:  In 1923, Sochi acquired one of its most distinctive features, a railway which runs from Tuapse to Georgia within a kilometer or two of the coastline.Although this branch of the Northern Caucasus Railway may appear somewhat incongruous in the setting of beaches and sanatoriums, it is still operational and vital to the region's transportation infrastructure.Sochi was established as a fashionable resort area under Joseph Stalin, who had his favorite dacha built in the city.