New York City is the largest city in the United States, while the New York metropolitan area ranks among the world's most populous urban areas. It is a leading global city, exerting a powerful influence over worldwide commerce, finance, culture, fashion and +show all entertainment. The city is also an important center for international affairs, hosting the United Nations headquarters.

New York is notable among American cities for its high use and 24-hour availability of mass transit, and for the overall density and diversity of its population. In 2005, nearly 170 languages were spoken in the city and 36% of its population was born outside the United States. The city is sometimes referred to as "The City that Never Sleeps", while other nicknames include Gotham and the Big Apple. -show less