Senryū-Shōgunzuka Kofun - Himezuka Kofun - Credit: Wikimedia Commons
The is a pair of Kofun period tumuli, located in the Shinonoi-ishikawa neighborhood of the city of Nagano in the Chubu region Japan. They have has been protected under a single National Historic Site designation since 1977. Read more on Wikipedia
Source: en.wikipedia.org