The Tagansko-Krasnopresnenskaya (Russian: Таганско-Краснопресненская линия IPA: [tɐˈɡanskə krəsnəˈprʲesnʲenskɐjə ˈlʲinʲijə]) (formerly Zhdanovsko-Krasnopresnenskaya Ждановско-Краснопресненская) (Line 7) is the busiest line of the Moscow Metro. Built in 1966-1975 and extended in 2013 it cuts Moscow on a northwest-southeast axis and contains 21 stations.