99% Invisible 99% Invisible

Spolia

Aug 25, 2026 · 28m

Summary

This episode explores "spolia," the architectural practice of reusing old materials, through the story of Granby, Liverpool, where residents transformed demolition debris into "Granby Rock" to revitalize their neighborhood. Host Roman Mars and historian Dr. Emma Southern trace the tradition back to the Roman Empire, where emperors repurposed ancient stone for political propaganda. The discussion concludes with architect Kate Simenon, who argues that modern construction must adopt large-scale reuse to address climate change and resource scarcity.

Topics discussed

Intro: Instagram teen accounts and Indeed ad The hollowed-out neighborhood of Granby, Liverpool Community Land Trust and the creation of Granby Rock Defining Spolia: Architectural reuse and meaning Roman Empire: Marble, monuments, and slave labor The Crisis of the Third Century: Plague and chaos Constantine's Arch: Reuse as political propaganda Spreading reuse: Churches, Constantinople, and riots The origin of the term Spolia and post-war reuse Ads: Claude, Article, Dell, and AT&T Business Modern construction: Embodied carbon and waste Designing for disassembly and Granby's evolution Granby today, credits, and closing ads
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