The Tetrabrik Pavilion designed by CUAC Arquitectura and Sugarplatform in 2011 celebrates World Recycling Day. Built with over 45,000 cartons recycled by more than 100 colleges in Granada, Spain, the project has set a world record for the largest built structure created from recycled materials. It's nice to see an initiative with the environment in mind gather so much attention and remind us of how our waste accumulates.

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[via Architizer]