Ki Castle
Sōja-shi, Japan · built 700
Kino Castle (Kino-jō) was an ancient kōgoishi type castle located in the city of Sōja, Okayama Prefecture, Japan. Its ruins have been protected as a National Historic Site since 1986. Portions of the castle were reconstructed in the early 2000s.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).