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)
Central line (London Underground) it is the only Tube line running east–west through the central core of London, running under Oxford Street and the financial centre of the City of London. Crossrail, due to begin most of its core operation in autumn 2019 with full service by the end of 2019, will provide interchange with the Central line at Stratford, , , and Ealing Broadway, relieving overcrowding in these areas. The Central London Railway (CLR) was given permission in 1891 for a tube line between Shepherd's Bush and a station at Cornhill, and the following year an extension to Liverpool Street was authorised, with