Ayamezuka Kofun

Ayamezuka Kofun - Credit: Wikimedia Commons

The is a keyhole-shaped kofun burial mound located in the Takenomachi neighborhood of Nishikan-ku, Niigata in the Hokuriku region of Japan. The tumulus was designated a National Historic Site of Japan in 1938. Read more on Wikipedia

type: ancient site
date from: 5th century AD

Source: en.wikipedia.org