See New York City on old photos
See the old churches once visible across the city, now hidden behind huge skyscrapers. Check out the time when Skyscrapers and bridges were under construction and streets were full of people and horses instead of cars.
Old photos show many things that are gone now like e.g. elevated railway in Manhattan.
They also show many constructions that still exist or partially exist like e.g. the Dreamland, an amusement park at Coney Island.