English: First London Routemaster bus RM1640 (reg. 640 DYE) operating London Buses heritage route 9, pictured in Trafalgar Square en-route to the Royal Albert Hall. Having arrived from the Strand to the east, it is rounding the roundabout in the south of the square, to exit west along Cockspur St on the other side. The 1633 bronze equestrian statue of Charles I of England by Hubert Le Sueur stands in the middle of the roundabout, to the left in the picture.