Ōmura Cave Tombs
Hitoyoshi, Japan
The Ōmura Cave Tomb Cluster (Ōmura yokoana-gun) is a cluster of yokoanabo tombs dug in artificial caves in a tuff cliff of located in the Shiromoto-machi neighborhood of the city of Hitoyoshi, Kumamoto Prefecture in Kyushu Japan. It was designated as a National Historic Site in 1921.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).