Save this picture!Written by Adelyn Perez Share ShareFacebookTwitterMailPinterestWhatsappOrhttps://www.archdaily.com/62410/ad-classics-willis-tower-sears-tower-skidmore-owings-merrill Clipboard "COPY" Copy+ 15 Skyscrapers•Chicago, United States Architects: Skidmore, Owings & Merrill Year Completion year of this architecture project Year: 1973 Photographs Photographs:SOM Manufacturers Brands with products used in this architecture project Manufacturers: Kuraray, Campolonghi Products translation missing: en-US.post.svg.material_description