I live in a big city With an estimated 2016 population of 8,537,673.
Wow, really. Please what is the name of the city
The City of New York, often called New York City or simply New York which is the center of commerce of the county
That is lovely, New York is a big city. What is their commercial value
They are regarded as the global power city because of their  cultural, financial, and media capital of the world, and exerts a significant impact upon commerce, entertainment, research, technology, education, politics, and sports.
Awesome, what kind of sports do they engage in?
I could not pin point out one but i know with the  with an estimated 23.7 million residents as of 2016 there will be lots of them
OK. What about their cultural value, do u know any?
headquarters of the United Nations, New York is an important center for international diplomacy.
Situated on one of the world's largest natural harbors, New York City consists of five boroughs, each of which is a separate county of the State of New York. The five boroughs – Brooklyn, Queens, Manhattan, The Bronx, and Staten Island – were consolidated into a single city in 1898. The city and its metropolitan area constitute the premier gateway for legal immigration to the United States. As many as 800 languages are
New York City
The City of New York, usually called either New York City (NYC) or simply New York (NY), is the most populous city in the United States. With an estimated 2018 population of 8,398,748 distributed over a land area of about , New York is also the most densely populated major city in the United States. Located at the southern tip of the state of New York, the city is the center of the New York metropolitan area, the largest metropolitan area in the world by urban