Jōnoyama Kofun

Jōnoyama Kofun - Credit: Wikimedia Commons

The 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. Read more on Wikipedia

type: ancient site
date from: early 4th century AD

Source: en.wikipedia.org