Yonaguni Submerged Stepped Terrace South Face — Main Structure
A structure at Yonaguni Submerged Stepped Terrace South Face · 🇯🇵 Japan
The structure
About Yonaguni Submerged Stepped Terrace South Face — Main Structure
Principal submerged city — Submerged area 450 × 280 m with diagnostic masonry/panel