Miyazuka Kofun
Japan
The Miyazuka Kofun is a Kofun period burial mound located in the Hirose neighborhood of what is now the city of Kumagaya, Saitama Prefecture in the Kantō region of Japan. It was designated a National Historic Site of Japan in 1956.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).