West End of London the Square Mile, is the main business and financial district in London, the West End is the main commercial and entertainment centre of the city. It is the largest central business district in the United Kingdom, comparable to Midtown Manhattan in New York City, Causeway Bay in Hong Kong, Shibuya in Tokyo, or the 8th arrondissement in Paris. It is one of the most expensive locations in the world in which to rent office space. Medieval London comprised two adjacent cities - the City of London (cathedral: St. Paul's) to the east, and the City of Westminster (cathedral: Westminster Abbey)
Flag of the City of London and Mansion House, the official residence of the Lord Mayor of London (the Lord Mayor has a variant of the flag, defaced with his coat of arms). It can also be seen on sites outside the city that are administered by the City of London Corporation (the governing body) such as on Tower Bridge, the Animal Reception Centre at Heathrow Airport and Hampstead Heath. It can also be seen on certain landmarks, such as the bridges maintained by the Bridge House Estates. The flag is used on the one pound coin design of 2010. Flag of the City of London