 In informal usage, "city" can be used for large towns or conurbations that are not formally cities.The best-known example of this is London, which contains two cities (the City of London and the City of Westminster) but is not itself a city, as well as Milton Keynes which is often referred to as a city and was even planned as a "new city" despite never officially gaining the title.There are currently 69 officially designated cities in the UK, of which 11 have been created since 2000 in competitions to celebrate the new millennium and Queen Elizabeth II's Golden Jubilee in 2002 and Diamond Jubilee in 2012.