Greater London is often referred to as "the City" or "the Square Mile" and it forms the main financial district. Archaically, the urbanised area of London was known as the Metropolis. In common usage, the terms "London" and "Greater London" are usually used interchangeably. Greater London is officially divided for some purposes, with varying definitions, into Inner London and Outer London. For some strategic planning purposes it is divided into five sub-regions. Greater London is under the strategic local governance of the Greater London Authority (GLA). It consists of an elected assembly, the London Assembly, and an executive head, the Mayor of
King Square, London from Angel, Barbican, and Old Street tube stations, and 12 minutes from Farringdon station King Square, London King Square is a square in central London in the St Luke's area of the London Borough of Islington. It is situated at the corner of Lever Street and Central Street; it borders King Square Gardens to the West. The square is surrounded by restaurants, cafeterias, a newsagent's, a florist shop, a pub and a residential development. 19th century St Clement's Church stands in the corner of the square. On the other side of Central Street stands Thistle City Barbican Hotel. The square,