Azuchi-Hyōtanyama Kofun - Credit: Wikimedia Commons
The is a Kofun period burial mound located in the Azuchi neighborhood of the city of Ōmihachiman, Shiga Prefecture in the Kansai region of Japan. The tumulus was designated a National Historic Site of Japan in 1957. With a total length of 134 meters, it is the largest kofun in Shiga Prefecture, and is estimated to have been built around the middle of the 4th century AD (early Kofun period). Read more on Wikipedia
Source: en.wikipedia.org