Myōkensan Kofun
Imabari, Japan
The Myōkensan Kofun is a Kofun period burial mound, located in the Onishi neighborhood of the city of Imabari, Ehime on the island of Shikoku in Japan. It was designated a National Historic Site of Japan in 2010. It is the largest rectangular burial mound in Shikoku.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).