Designed by internationally renowned architect, I.M. Pei, this building is the hub of city government and services host numerous festivals and special events at its broad plaza. Abstract and vanguard best describe this compositional landmark. The Dallas City Hall Building inaugurated in 1978. The structure, which was designed by famous designer I.M. Pei, measures 560 feet in length and 122 feet high. Resembling a modified pyramid, the special outside stands 10 stories high. The city hall complex sits on a six-section of land court and merits visiting solely to see how the even design complements Dallas' rising skyline.