The Koltsevaya line (Russian: Кольцева́я ли́ния, Ring line) (Line 5) is a line of the Moscow Metro. The line was built in 1950–1954 as a circle route orbiting central Moscow, and became crucial to the transfer patterns of passengers. The stations of the line were built at the height of Stalinist architecture, and include Komsomolskaya, Novoslobodskaya and Kiyevskaya.
