And,third place went to a team in the United States for their "Nested Skyscraper."

VOA: special.2010.03.31

The firefighters made their way up the skyscraper to find and evacuate victims.

CNN: 9/11 museum: Tragedy turns the mundane into memorial

Using steel framing and high-speed elevators, they created their pinnacle achievement: the modern skyscraper.

BBC: The infamous architecture of Chicago