New York City

The Flatiron Building was constructed between 1901 and 1903 at the intersection of Broadway and 5th Avenue, at the time one of the most prominent sites.

Due to the geography of the site, with Broadway on one side, Fifth Avenue on the other, and the open expanse of Madison Square and the park in front of it, the wind currents around the building could be treacherous.
Wind from the north would split around the building, downdrafts from above and updrafts from the valuted area under the street would combine to make the wind unpredictable.
This is said to have given rise to the phrase "23 skidoo", from what policemen would shout at men who tried to get glimpses of women's dresses being blown up by the winds swirling around the building due to the strong downdrafts.

Another view of the Flatiron Building:



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