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Tagsspiral-wells
1 place carries this tag, across every kind and continent it appears in.
🇵🇪 Peru · Hydraulic works
Nasca culture, Early Intermediate (~500 BCE – 600 CE; puquios ~300–600 CE) · Nasca (Nazca)
Unique Andean hydraulic analog to Persian qanats: 36 puquios, each a stone-lined infiltration gallery tapping sub-river gravel aquifers, ventilated by corkscrew stone spirals descending to the…