Undiscovered Underground Ruins (未発見の地下遺跡)
There is a possibility that undiscovered underground ruins still exist. There are still places that have not been excavated or that may be discovered as excavation technology advances.
「Cappadocia」一覧
There is a possibility that undiscovered underground ruins still exist. There are still places that have not been excavated or that may be discovered as excavation technology advances.