Chōjagadaira Kanga ruins - Credit: Wikimedia Commons
The is an archaeological site with the ruins of a Nara to Heian period government administrative complex located in what is now on the border of the cities of Nasukarasuyama, and Sakura in Tochigi prefecture in the northern Kantō region of Japan. It is protected by the central government as a National Historic Site from 2009. Read more on Wikipedia
Source: en.wikipedia.org