![The Petra North Ridge, with view of the city wall, the Blue Chapel, the Great Temple, and the Petra Garden and Pool Complex. Photo by Sarah Wenner.](https://publications.acorjordan.org/wp-content/uploads/wenner-insights-fig-1-petra-north-ridge-city-wall-blue-chapel-great-temple-garden-pool-complex-ed-1200x800-1-360x240.jpg)
by Sarah Wenner Hidden below an urban façade but nevertheless essential for its shaping, a city’s trash was routinely used in construction processes across the Roman world. Before that occurred, both established and ad hoc frameworks dictated the lifecycles of urban waste, from its initial discard, through its sorting and storage, to its reclamation by…