1969 – Fernsehturm, Berlin, Germany
Architect: Fritz Dieter, Günter Franke
The tallest structure in Berlin,
1976 – CN Tower, Toronto, Ontario
Architect: WZMH Architects
Defining the Toronto skyline,
1992 – Torre de Communicació de Collserola, Barcelona, Spain
Architect: Foster & Partners
Built for the Barcelona Olympics,
