Eastern Yonaguni Fortress A — Yonaguni (58-50) Main Submerged-City Feature
A structure at Eastern Yonaguni Fortress A — Yonaguni (58-50) · 🇯🇵 Japan
The structure
About Eastern Yonaguni Fortress A — Yonaguni (58-50) Main Submerged-City Feature
Primary submerged-city feature at Eastern Yonaguni Fortress A — Yonaguni (58-50) – central fortress and associated settlement element with stratified deposits