The City of Westminster is a London borough occupying much of the central area of London, England, including most of the West End. It is located to the west of and adjoining the ancient City of London, directly to the east of the Royal Borough of Kensington and Chelsea, and its southern boundary is the River Thames. It is an Inner London borough and was created in 1965 when Greater London was established. At its creation Westminster was awarded city status, which had been previously held by the smaller Metropolitan Borough of Westminster. Aside from a number of large parks and open spaces, the density of the district is high. Many sites thought of as being in London are actually in Westminster, including Buckingham Palace, the Houses of Parliament, and 10 Downing Street.