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)
Economy of London firms, insurance companies and reinsurance markets. London is notable as a centre of international finance where foreign participants in financial markets come to deal with one another. It is also home to the Bank of England, the second oldest central bank in the world, and the European Banking Authority, although the latter is moving to Paris in March 2019 following the Brexit referendum of 2016. Other key institutions are Lloyd's of London for insurance, the Baltic Exchange for shipping. A second financial district has developed at Canary Wharf to the east of the City, which includes the global headquarters of