SHoP's '111 west 57th street' skyscraper documented by paul clemence
SHoP architects tops out slender NYC skyscraper, 111 west 57th street
111 West 57th Street: Most Up-to-Date Encyclopedia, News & Reviews
111 West 57th Street, Lasvit
111 West 57th Street, most Slender Skyscraper in the World Tops Out – Lopes Dias Arquitetura
111 West 57th Street - Wikipedia
The thinnest skyscraper in the world: Steinway Tower
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111 West 57th Street Tower in New York - e-architect