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
Belgrade Fair – Hall 1 Belgrade Fair – Hall 1 The Belgrade Fair – Hall 1, is Belgrade Fair's largest exhibition space. The hall opened to the public in 1957. It was the world's largest dome between 1957 and 1965 and is Europe's largest dome. The Hall 1 is constructed between 1954 and 1957 by Branko Žeželj and Milorad Pantović. It is located on new Belgrade Fair ground on the right bank of the Sava River. It is circular in shape, covered by a dome spanning 109 m, which is the largest dome in the world constructed by prestressed concrete. The maximum ceiling height at