The 33 Thomas Street Building.
This building, with its typical Brutalist architectural style , is located in Manhattan and is the former headquarters of a telephone exchange dating back to the 1970s, owned by ATeT , a well-known American telephone company.
The skyscraper has no windows.
The explanation seems to be that the building housed very large equipment and machinery, capable of reaching extremely high temperatures, and therefore the lack of windows allowed the space to remain cool.
Furthermore, because of how it was built, it is described as one of the safest buildings in America, capable of withstanding post-explosion nuclear fallout and with enough gas, water, and electricity generation reserves to operate independently for several months.