New metro stations to commence operations on Bolshaya Koltsevaya Line in Moscow, Russia December 9, 2020 | Europe News Moskovsky Metropoliten, the operator of the Moscow Metro network, has announced plans to open new stations on its Bolshaya Koltsevaya Line/Big Circle Line in December 2020. The opening of the n... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password