Mutsu Kami Kaidō - Credit: Wikimedia Commons
The is an ancient highway in Mutsu Province which connected the Ōshū Kaidō to the Dewa Kaidō in the Tōhoku region of northern Japan. A surviving portion of the ancient road in the city of Ōsaki, Miyagi has been protected as a National Historic Site since 1990. Read more on Wikipedia
Source: en.wikipedia.org