Trafalgar Square capital. Building work on the south side of the square in the late 1950s revealed deposits from the last interglacial. Among the findings were the remains of cave lion, rhinoceros, straight-tusked elephant and hippopotamus. The site of Trafalgar Square has been a significant location since the 13th century. During Edward I's reign, the area was the site of the King's Mews, running north from the original Charing Cross, where the Strand from the City met Whitehall coming north from Westminster. From the reign of Richard II to that of Henry VII, the mews was at the western end of the
Trafalgar Square Horse Guard's Parade, along Whitehall to Nelson's Column. As an archetypal London location, Trafalgar Square featured in film and television productions during the Swinging London era of the late 1960s, including "The Avengers", "Casino Royale", "Doctor Who", and "The Ipcress File". It was used for filming several sketches and a cartoon backdrop in the BBC comedy series "Monty Python's Flying Circus". In May 2007, the square was grassed over with 2,000 square metres of turf for two days in a campaign by London authorities to promote "green spaces" in the city. In July 2011, due to building works in Leicester