Chibusan-Obusan Kofun
Japan
Chibusan Kofun - Obusan Kofun are a pair of Kofun period burial mounds, located in the Jyō neighborhood of the city of Yamaga, Kumamoto, Japan. The Chibusan Kofun was designated a National Historic Site of Japan in 1922 and the Obusan Kofun was added to the designation in 1999.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).