Ishinukinagi Cave Tomb Cluster
Tamana, Japan
The Ishinukinagi Cave Tombs (Ishinukinagi no yokoana-gun) is an archaeological site containing 45 Kofun period yokoanabo, tunnel tombs in artificial caves, located in the Ishinuki neighborhood of the city of Tamana, Kumamoto, Japan. It was granted protection as a National Historic Site in 1921.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).