Hi. I live in a small apartment in New York City.  It's very hot today!
Oh wow. That's expected judging by the fact that it is the most populous city in the United States.
And all the concrete and asphalt doesn't help either.  Yes it is the most densely populated city in the US for sure.
The figures are unbelievable, as at 2016 there were estimated 2016 population of 8,537,673 residents there
And the diversity is unmatched also. It has the largest foreign  born population of any city in the entire world. 
One thing I can tell you for sure is that It  has a mix of  cultural, financial, and media and tops other cities , it's influence on  commerce, entertainment, research, technology, education, politics, and sports is high 
There was almost 63 million tourists visiting the city in 2017.  So much to see and do, and eat. 
Wow!, one thing i know for sure is that there are no dull moment as everything is fast paced
It's also the most photographed city.  A lot of modern architecture is juxtaposed with a lot of old classical architecture in the  City also.
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
most densely populated county in the United States, after New York County (which is coextensive with the borough of Manhattan).
With a land area of and water area of , Kings County is New York state's fourth-smallest county by land area and third-smallest by total area, though it is the second-largest among the city's five boroughs. Today, if each borough were ranked as a city, Brooklyn would rank as the third-most populous in the U.S., after Los Angeles and Chicago