London [ˈlʌndən] is the capital and largest city of the United Kingdom of Great Britain and Northern Ireland. Administratively, the Greater London region of England is divided into 33 self-governing territories. The population is 8.6 million people (2015) - this is the third largest city in Europe [2]. Forms the agglomeration of Greater London and the vast metropolitan area. Located in the southeast of the island of Great Britain, on a plain at the mouth of the Thames, near the North Sea. The main political, economic and cultural center of the United Kingdom.
London is located on the plains of the London Basin. The highest point above sea level is Westerham Heights (245 m) in the extreme south-east of the city.
London is the most important economic and financial center of Great Britain and Europe; one of the global cities competing with New York for the title of the world's leading financial center.