Aon Center
World Trade Center (New York)
Built in 1977
Built in 1976
Built in 1972
Built in 1971
Built in 1979
US Bank Center (Milwaukee)
Skyscrapers opened in 1977 | Built in 1978
Built in 1970
Built in 1974
Skyscrapers opened in 1972
Uni-Center (Cologne)
One Liberty Plaza
Colonia-Haus
Built in 1973
Skyscrapers opened in 1974 | 1970s skyscrapers
Skyscrapers opened in 1978
Skyscrapers opened in 1976
Skyscrapers opened in 1979 |
