Iwaseoyama Kofun Cluster - Credit: Wikimedia Commons
The is a group of Kofun period burial mounds located on the Iwaseo mountains spreading across the Mineyama, Muromachi, Miyawaki, Nishikasuga, Tsuruichi, and Nishitakara neighborhoods of the city of Takamatsu, Kagawa Prefecture on the island of Shikoku Japan. The cluster was designated a National Historic Site in 1934, with the era under protection expanded in 1985 and 1989.. Read more on Wikipedia
Source: en.wikipedia.org