Jōnoyama Kofun
Japan
The Jōnoyama Kofun is a Kofun period burial mound located in the Ōtsuka neighborhood of the city of Tainai, Niigata in the Hokuriku region of Japan. The tumulus was designated a National Historic Site of Japan in 2019. It is the third largest known kofun in Niigata Prefecture.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).