London is the administrative centre of Great britain and the United Kingdom. It is considered to be one of the major metropolitan area and major urban zone in britain. As known London is well-known for its economic progress i. e it is one of the largest fund centre along with NY. It really is one of the global leading economies with its growth in almost every sector from artwork, entertainment, education and fashion to tourism and travelling. However tourism has been one of the trademarks for London. It makes its maximum earnings through tourism which offers to increasing the GDP of the country. Coming to achievements, London has the world's largest airport terminal system and it's been successfully hosted Olympics thrice compared to other leading economies. Not only the geographic and economical factors, what makes London unique the social and ethnical factors.