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
Financial District, San Francisco new high rise construction since the 1980s (and for the foreseeable future) has taken place South of Market. Notable examples include the JPMorgan Chase Building, 555 Mission Street, 101 Second Street, the Four Seasons Hotel, The Paramount, and the Millennium Tower. According to TRI Commercial, the traditional Financial District provides approximately of office space, and the South Financial District offers about . Altogether, the combined Financial District employs over 220,000 office workers. Adjacent to the Financial District to the west is the Union Square shopping district. To the northwest is Chinatown, and to the north is North Beach and Jackson