For
Chicago, I would add these 5:
Bank of China Tower - Hong Kong (location: Randolph and Franklin)
Source: wikipedia.org
American Copper Buildings - New York City (location: North Water and Columbus)
Source: wikipedia.org
Palacio Salvo - Montevideo (location: 830 South Michigan Avenue)
Source: wikipedia.org
Mode Gakuen Cocoon Tower - Tokyo (location: Harrison and State)
Source: wikipedia.org
Absolute World - Mississauga (location: Roosevelt and Wells)
Source: wikipedia.org