Description : London is one of the world's foremost global cities alongside New York City and the largest financial center alongside New York City and Tokyo. Central London is home to the headquarters of more than half of the UK's top 100 listed companies (the FTSE 100) and more than 100 of Europe's 500 largest. The city's influence in politics, education, entertainment, media, fashion, the arts and culture in general contributes to its global position. It is a major tourist destination for both domestic and overseas visitors. London hosted the 1908 and 1948 Summer Olympics and will host the 2012 Summer Olympics.