Ōyasuba Kofun

Ōyasuba Kofun - Credit: Wikimedia Commons

The is a group of five early to middle Kofun period megalithic tumuli located in what is now part of the town of Kōriyama, Fukushima in the southern Tōhoku region of Japan. The largest of the tumuli at the site was designated a National Historic Site of Japan in 2000. Read more on Wikipedia

type: ancient site
date from: late 4th, early 5th century AD

Source: en.wikipedia.org