Ishinohoden Kofun — Karatsu Vaulted Stone Chamber — Mound Annex 3
A structure at Ishinohoden Kofun — Karatsu Vaulted Stone Chamber · 🇯🇵 Japan
The structure
About Ishinohoden Kofun — Karatsu Vaulted Stone Chamber — Mound Annex 3
mound at Ishinohoden Kofun — Karatsu Vaulted Stone Chamber — hydraulic feature