This great vintage photograph from 1907 shows the intersection of 23rd Street and Madison Avenue, as seen from the base of the Flatiron Building. You can see Madison Square park with snow on the ground in the dead of winter, several horse-drawn carriages and well-dressed pedestrians, and the old Metropolitan Life Insurance Building.
Madison Square Park and the Metropolitan Life Insurance Building. There is snow on the ground, and horse-drawn carriages and streetcars drive in the street.
Check out the specimen page in the Museum of the City of New York's digital collection for more info. Below is a Google Street View of how it looks from approximately the same vantage point today.
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