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
Meštrović Pavilion pavilion opens into a vestibule flanked on either side by staircases. Directly ahead is the central exhibition hall, a cylindrical space designed for exhibiting sculpture. Above the entrance to this space is a relief of King Petar I by Ivan Meštrović. The staircases lead to a circular exhibition hall. A smaller, concentric exhibition hall opens into the cylindrical space and offers views of the gallery below. The dome of the pavilion, planned by architect Zvonimir Kavurić, is composed of round glass tiles 57 mm (2.24 in) thick and 125 mm (4.92 in) in diameter, set into a concrete shell with