Loving this installation by rietveld landscape (ronald rietveld and erik rietveld) who have been invited by the netherlands architecture institute (NAI) 
to make a statement in the form of an installation about the potential of landscape architecture to contribute to 
resolving the major challenges facing society today.

http://www.designboom.com/weblog/cat/9/view/11343/vacant-nl-dutch-pavilion-at-venice-architecture-biennale-2010.html