Architect Teddy Cruz tracks a new kind of urban ecology: Across the border from San Diego in Tijuana, a spontaneous urban space is taking shape off the radar of city planners, as an affluent city sheds its aging houses and its pieces are reassembled into creative dwellings for the poor.

Filmmaker Laura Hanna created A City Made of Waste in 2008 for the exhibition Home Delivery: Fabricating the Modern Dwelling at the Museum of Modern Art in New York. The film has since been acquired by MoMA for its permanent collection.

—Joan Connell

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