🇾🇪 Yemen · Hydraulic works
Marib South Sluice & Southern Oasis Canal (Jannat al-Janub)
Sabaean to Himyarite (7th c BCE–6th c CE) · Sabaean / Himyarite
South sluice of Great Dam of Ma'rib (7th c BCE–575 CE) — 18-m limestone control for the grand southern oasis.