and expectations for the future. In 1974, Louis Kahn's last and arguably most famous building, the National Assembly Building of Dhaka, Bangladesh, was completed. The building's use of open spaces and groundbreaking geometry brought rare attention to the small South Asian country. Hugh Stubbins's Citicorp Center revolutionized the incorporation of solar panels in office buildings. The seventies brought further experimentation in glass and steel construction and geometric design. Chinese architect I. M. Pei's John Hancock Tower in Boston, Massachusetts, is an example, although like many buildings of the time, the experimentation was flawed and glass panes fell from the façade. In 1976, the completed CN Tower in Toronto became the world's tallest free-standing structure on land, an honor it held until 2007. The fact that no taller tower had been built between the construction of the CN Tower and the Burj Khalifa shows how innovative the architecture and engineering of the structure truly was. Modern architecture was increasingly criticized as the decade went on from the point of view of postmodern architects, such as Philip Johnson, Charles Moore, and Michael Graves, who advocated a return to pre-modern styles of architecture and the incorporation of pop elements as a means of communicating with a broader public. Other architects, such as Peter Eisenman of the New York Five, advocated the pursuit of form for the sake of form and drew on semiotics theory for support. "High Tech" architecture moved forward as Buckminster Fuller continued his experiments in geodesic domes, while the Georges Pompidou Center, designed by Renzo Piano and Richard Rogers, which opened in 1977, was a prominent example. As the decade drew to a close, Frank Gehry broke out in new direction with his own house in Santa Monica, a highly complex structure, half excavated out of an existing bungalow and half cheaply built construction using materials such as chicken wire fencing. Terracotta Army figures, dating from 210 BC, were discovered in 1974 by some local farmers in Lintong District, Xi'an, Shaanxi Province, China, near the Mausoleum of the First Qin Emperor (Chinese: 秦始皇陵; pinyin: Qín Shǐhuáng Ling). In 1978, electrical workers in Mexico City found the remains of the Great Pyramid of Tenochtitlan in the middle of the city. Fashion Clothing styles during the 1970s were influenced by outfits seen in popular music groups and in Hollywood films. In clothing, prints, especially from India and other parts of the world,