Flatiron District toward Lower Manhattan, night skyline

flatiron district lower manhattan nyc madison square park cityscape manhattan new york city flatiron building skyline new york night usa skyscrapers glittering financial district historic site iconic united states attraction america tourist attraction landmark skyscraper city construction ny metropolitan infrastructure urban architecture high riser highrise buildings travel destination sightseeing visit new york one world freedom tower architectural building exterior contemporary us united stated tallest building in us urban planning commercial neighborhood office highrises