Trafalgar Square is a public space and tourist attraction in central London, built around the area formerly known as Charing Cross. It is situated in the City of Westminster. At its centre is Nelson's Column, which is guarded by four lion statues at its base. There are a number of commemorative statues and sculptures in the square, while one plinth, left empty since it was built in 1840, The Fourth Plinth, has been host to contemporary art since 1999. The square is also used for political demonstrations and community gatherings, such as the celebration of New Year's Eve.