The St. Petersburg Metro is considered to be one of the most architecturally beautiful underground railway systems across the globe, renowned for its unique interiors. Construction of the Leningrad Metro began in 1937 and should have been completed in 1942. Originally started with 2 lines and 13 stations, construction was frozen during the Second World War and resumed under a new project only after a few years have passed, in 1946.
The first 7 stations (including Avtovo station) were opened in 1955. Much has changed since then, metro expanded, and today it has 5 lines and 67 stations, with over 2.5 million passengers a day. Due to the city's unique geology the St. Petersburg Metro is the deepest one in the world with its average depth of 57 meters.