 César Pelli's 181 West Madison Street Building in Chicago is also thought to be inspired by Saarinen's design.Other Tribune tower entries by figures like Walter Gropius, Bertram Goodhue, Bruno Taut, and Adolf Loos remain intriguing suggestions of what might have been, but perhaps not as intriguing as the one surmounted by a Mount Rushmore-like head of an American Indian.These entries were originally published by the Tribune Company in 1923 under the title "Tribune Tower Competition" and later in "The Chicago Tribune Tower Competition