Architect Barton Willmore and civil engineer Buro Happold have won a competition to design a futuristic botanical garden and leisure centre in Saudi Arabia.
The $170m (£82m) 160ha King Abdullah International Gardens are due to be completed by 2010. At the centre is a building, formed as two interlocking crescents, that accommodates controlled environments. Run mainly on solar power, the development will be supported by wind turbines.
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