This image is from an article at UrbanPeek. It’s hard to imagine what the city was like in 1883, but the 1876 photo does help. In the oldest photo you can see the Hudson on the other side of Manhattan Island, but that has changed by 1932. You’ll note too that the Brooklyn Bridge was still under construction, and that there are ships’ masts in the bay. While steam-powered boats were rapidly taking over long-distance travel, at this date crossings were often by sail.
The opening of the Brooklyn Bridge is a pivotal event in The Gilded Hour.