The unusual gray house No. 1 on Gogol Street in Kaluga, built in 1914-1915 by captured Turks, is considered one of the most mysterious residential mansions in the city. Gogol Street, the shortest in Kaluga and one of the few that was not renamed during the Soviet era, possibly in honor of the great writer who visited nearby in the wooden governor's wing in the mid-19th century. Among the builders of the house is mentioned the revolutionary journalist Mustafa Subhi, the future founder of the Communist Party of Turkey, who found himself in exile in Kaluga as an interned Turkish subject in November 1914. During World War I, the building was used as a hospital for wounded Russian soldiers, and then for a short time it housed a synagogue. The house also belonged to the Western branch of the Moscow Railway and served as a dormitory. Almost to this day, one of its rooms housed a railway archive.