Montreal Olympic Stadium and surrounding structures, are but a few notable examples of the city's 20th-century architecture. Pavilions designed for the 1967 International and Universal Exposition, popularly known as Expo 67, featured a wide range of architectural designs. Though most pavilions were temporary structures, several have become landmarks, including Buckminster Fuller's geodesic dome U.S. Pavilion, now the Montreal Biosphere, and Moshe Safdie's striking Habitat 67 apartment complex. The Montreal Metro has public artwork by some of the biggest names in Quebec culture. In 2006 Montreal was named a UNESCO City of Design, only one of three design capitals of the world
ASM Headquarters and Geodesic Dome stainless steel "sun shield," which protects against the afternoon sun without obstructing the view by providing 4,000 one-foot by five-inch louvers. Stainless steel, bronze, copper, aluminum, titanium and tungsten elements are incorporated into the interior design. The original investment for the building and landscaping was $2.4 million. The semi-circular building, capped by a geodesic dome, "symbolizes humanity’s mastery of metals and materials." Construction began in March 1958 by general contractor Gillmore-Olson Company, under the supervision of George McKay. Aluminum was supplied by Kaiser Aluminum & Chemical Co. of Halethorpe, Maryland. The dome was fabricated by North American Aviation Corporation of