✦ The Ancient Atlas

Oya Stone Quarry

UndergroundAsia

Vast hand-carved subterranean quarry in Tochigi Prefecture, now the Oya History Museum. Cathedral-scale chambers, 60m deep, cut from soft volcanic tuff (oya stone). Official records date carving 1919-1986, but alt-archaeology suggests the original excavation may be far older.

36.5811°, 139.8456°

Open in the Atlas map →

Walkthrough videos (2)

Archaeologists Discovered A Pre-Flood Structure In Japan That Man Could Never BuildArchaeologists Discovered A Pre-Flood Structure In Japan That Man Could Never BuildLife's Biggest QuestionsPre-Historic Mega Structures of Japan & Unexcavated Giant Tombs (Oya Quarry section)Pre-Historic Mega Structures of Japan & Unexcavated Giant Tombs (Oya Quarry section)Universe Inside You

Nearby sites