 It was completely renovated in 2015-2016.The original building of the Sofia Railway Station was opened on 1 August 1888 to serve the Tsaribrod-Sofia-Vakarel line, the first line of the Bulgarian State Railways entirely built by Bulgarian engineers.The building was designed by the architects Antonín Kolář, Václav Prošek and Marinov, and built with the participation of Italian specialists under Bulgarian undertaker Ivan Grozev between 1882 and 1888.