Hōōzan Cave Tombs - Credit: Wikimedia Commons
The is a group of late Kofun period located in the Chokushimachi neighborhood of the city of Kaga, Ishikawa in the Hokuriku region of Japan. The site was designated a National Historic Site of Japan in 1929. It is the largest group of cave-tombs in the Hokuriku region. Read more on Wikipedia
Source: en.wikipedia.org