Keywords :
Minoru Yamasaki , World Trade Center model • The Architectיs Collaborative (TAC) • United Architects (UA) • the Port Authority of New York and New Jersey • Walter Gropius • Skidmore , Owings & Merrill (SOM) • Emory Roth and Sons • John Skilling and Leslie Robertson • Daniel Libeskind • United Towers • city in the sky
