Completed in 2010 in Al Raha Beach, United Arab Emirates, the <a href='http://www.aldar.com/en/project/projects/hq-1' target='_blank'>Aldar Headquarters building</a> resembles a glass-covered wheel. The 23-story office space follows LEED standards for environmentally exceptional buildings. It has has become a city landmark, says <a href='http://ireport.cnn.com/docs/DOC-1123294'>Devi Trianna</a>, who predicts the cities of the future will be more environmentally friendly.
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