Trafalgar Square death, and the square did not open until 1844. The Nelson's Column at its centre is guarded by four lion statues. A number of commemorative statues and sculptures occupy the square, but the Fourth Plinth, left empty since 1840, has been host to contemporary art since 1999. The square has been used for community gatherings and political demonstrations, including Bloody Sunday in 1887, the culmination of the first Aldermaston March, anti-war protests, and campaigns against climate change. A Christmas tree has been donated to the square by Norway since 1947 and is erected for twelve days before and after Christmas
Trafalgar Square proposed a similar solution with a central flight of steps. Plinths were provided for sculpture and pedestals for lighting. All the stonework was of Aberdeen granite. In 1841 it was decided that two fountains should be included in the layout. The estimated budget, excluding paving and sculptures, was £11,000. The earth removed was used to level Green Park. The square was originally surfaced with tarmacadam, which was replaced with stone in the 1920s. Trafalgar Square was opened to the public on 1 May 1844. Nelson's Column was planned independently of Barry's work. In 1838 a Nelson Memorial Committee had approached