London is the capital and most populated city of England and the United Kingdom. It is situated on the bank of River Thames and in the south east of the Island of Great Britain. London is a leading global city in the entertainment, arts, commerce, finance, education, fashion, healthcare, research and development, media, professional services, tourism and transportation. It is the world's largest financial centre and has the fifth largest area in the world. London is often regarded as a cultural capital of the globe. It is the most-visited city in the whole world as measured by international arrivals and has the world's largest city airport system. It is the largest and leading investment destination and hosts more net-worth individuals than any other city. Even London's universities form the largest concentration of higher education institutes in Europe.