🇾🇪 Yemen · Submerged site
Shabwa – Hadramawt Incense Harbour, Yemen
Qatabanian to Himyarite (c. 700 BCE – 400 CE) · Hadrami South Arabian / Himyarite
Incense road river harbour 200 m silted in Wadi Hadramawt – warehouses sealed 4th c. Himyar sack.
🇾🇪 Yemen · Hydraulic works
Marib Dam
Sabaean Kingdom, Early South Arabian (~1750 BCE – 570 CE) · Sabaean (South Arabian, Kingdom of Saba)
Earthfill diversion dam spanning the Wadi Adhanah and flanked by the limestone North and South Sluices with Sabaean monumental inscriptions.