English: First London Routemaster bus RM1650 / SRM3 (reg. 650 DYE) operating London Buses heritage route 9, pictured heading east along Cockspur Street in Trafalgar Square, en-route to Aldwych. The Canadian High Commission building Canada House is in the background. The heritage routes began in November 2005, and this picture was taken on 9 December 2005, the last day of normal operation of Routemasters in London, with the changeover of the last ordinary route using them, the 159, to modern buses.