Government Center is a temporarily closed MBTA subway station and a transfer point between the Green Line and the Blue Line. It is located at the intersection of Tremont, Court and Cambridge Streets in the Government Center area of Boston. The Green Line platform opened in 1898, and holds the distinction of being the third oldest operating subway station in the MBTA system after Park Street and Boylston. The station is closed from 2014 to 2016 for a major renovation, which includes retrofitting the station for handicapped accessibility and building a new glass headhouse on City Hall Plaza.