Dome

Close up of decorative grid system (larger red overlay on smaller grid) on glass curtain wall; Commissioned by the Kuwait Investment Office (hence their initial name "Torres KIO" or "KIO Towers"). Twin office buildings in Madrid. Each building is 115 m tall (26 floors) with an inclination of 15°, making them the first inclined skyscrapers in the world. Leslie E. Robertson Associates, RLLP New York (LERA) provided structural engineering services. The west tower has a rooftop helicopter pad outlined in blue; the east tower has a red one. Now owned by Bankia and Realia. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 8/9/2013)