Biwazuka Kofun

Biwazuka Kofun - Credit: Wikimedia Commons

The is a Kofun period burial mound located in Iizuka neighborhood of the city of Oyama in Tochigi Prefecture in the northern Kantō region of Japan. The tumulus received protection as a National Historic Site in 1926. It is the second largest in the prefecture. Read more on Wikipedia

type: ancient site
date from: late 6th century AD

Source: en.wikipedia.org