London is proclaimed the most expensive city in the world. London is the capital of both England and the United Kingdom, and the most populous municipality in the European Union. An important settlement for two millennia, London’s history goes back to its founding by the Romans. Since its foundation, London has been part of many movements and phenomena throughout history, including the English Renaissance, the Industrial Revolution, and the Gothic Revival. The city's core, the ancient City of London, still retains its limited medieval boundaries; but since at least the 19th century, the name London has also referred to the whole metropolis that has developed around it. Today the bulk of this conurbation forms the London region of England and the Greater London administrative area, with its own elected mayor and assembly. London is one of the world's most important business, financial and cultural centres and its influence in politics, education, entertainment, media, fashion and the arts contributes to its status as a major global city. Central London is the headquarters of more than half of the UK's top 100 listed companies (the FTSE 100) and over 100 of Europe's 500 largest companies. The city is a major tourist destination for both domestic and overseas visitors, with annual expenditure by tourists of around USD 15 billion. London hosted the 1908 and 1948 Summer Olympic Games and will host the 2012 Summer Olympic Games. Greater London contains four World Heritage Sites: the Tower of London; the historic settlement of Greenwich; the Royal Botanic Gardens, Kew; and the site comprising the Palace of Westminster, Westminster Abbey and St. Margaret's Church. London's population draws from a wide range of peoples, cultures, and religions, and over 300 languages are spoken within the city. As of July 2007, it had an official population of 7,556,900 within the boundaries of Greater London making it the most populous municipality in the European Union. As of 2001, the...