Shisr fortress over sinkhole (claimed Iram)
A structure at Iram of the Pillars – Ubar, Atlantis of the Sands (Hypothetical) · 🇴🇲 Oman
The structure
About Shisr fortress over sinkhole (claimed Iram)
45x45 m 8-tower limestone fortress collapsed into 30 m sinkhole at Shisr