The unusual shape was achieved by using diagonal grid of steel known as diagrid and the Skyscraper was voted as the Best Futuristic Design by The Building Exchange (BEX) Conference held in Spain.
The 110.03 metres high, 23 storey building was completed in end 2010. It has floor area of 61,900 square metres (666,000 sq. ft.) and beside having the headquarters of Aldar Properties, it will also cater to other commercial offices.
Image from Flickr is by melgrey1. Image is used here after due permission.
Image from Picasaweb is by Keith Wilson
Image from Panoramio is by salem33
Image from Flickr is by Paolo Rosa
Image from Flickr is by Earth Hour Global
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Source of info: Wikipedia / Emporis