Which architectural firm designed the first major retail complex to achieve LEED Platinum certification while implementing a closed-loop water system and generating 103% of its energy needs?

Sustainable design has become a cornerstone of modern architecture. From innovative materials to energy-efficient systems, architects are leading the charge in creating environmentally responsible buildings. This poll tests your knowledge about a groundbreaking sustainable architectural development that changed how we think about green building practices in commercial spaces.

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Foster + Partners with their Crystal Palace Shopping Center in Singapore (2011)
Bjarke Ingels Group (BIG) with The Cascade in Copenhagen (2012)
Lake|Flato Architects with their Bullitt Center retail expansion in Seattle (2013)
Renzo Piano Building Workshop with The Shard's Retail Pavilion in London (2014)