Mayuyama Kofun
Japan
Mayuyama Kofun is a Kofun period keyhole-shaped burial mound, located in the Mayu neighborhood of the city of Kishiwada, Osaka in the Kansai region of Japan. The tumulus was designated a National Historic Site of Japan in 1956, with the area under protection expanded in 2010.
Cemetery data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).