High Quality Content by WIKIPEDIA articles! The Tagansko-Krasnopresnenskaya (Russian: Таганско-Краснопресненская линия, IPA: ) (formerly Zhdanovsko-Krasnopresnenskaya, Ждановско-Краснопресненская) (Line 7) is the busiest line of the Moscow Metro. Built in 1966-1975 it cuts Moscow on a northwest-southeast axis and contains 19 stations.