SUBSCRIBE: – Historic Rosetta Stone, British Museum, London. Vic Stefanu, [email protected] London is a leading global city in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism, and transport. It is one of the world’s leading financial centres and has the fifth-or sixth-largest metropolitan area GDP in the world. London is a world cultural capital. It is the world’s most-visited city as measured by international arrivals and has the world’s largest city airport system measured by passenger traffic.