Norfolk Scope Arena in Norfolk, Virginia, USA, completed in 1971. Structure: A reinforced concrete dome with combination concrete panel and cast-in-place shell. Diameter: 134m. Seats: 12,000. Architect: E. Bradford Tazewell (dome) Consulting engineer: Pier Luigi Nervi (dome) Architects: Williams, Tazewell and Associates; Structural engineering: Fraioli-Blum-Yesselman Associates; Contractor: Daniel Construction Co.