🇴🇲 Oman · Hydraulic works
Aflaj al-Ain Nizwa Branch — Daudi Falaj Highland Channel
Sasanian to Islamic · Omani, Sasanian Persian, Ibadi
Nizwa Daudi mother well 30 m with 8-km tunnel and shari'a sharing basin, UNESCO aflaj highland branch.
🇴🇲 Oman · Hydraulic works
Falaj al-Khatmeen (Birkat al-Mouz — UNESCO aflaj flagship)
Iron Age II to Islamic (1000 BCE–present; active) · Iron Age Oman (Lizq–Rumaylah) → Sasanian → Islamic Ya'aribah
3.5-km Iron Age daudi qanat (c.1000 BCE, 8 shafts) delivering 70 l/s — UNESCO aflaj flagship at Birkat al-Mouz.