Hiyama Castle

Hiyama Castle - Credit: Wikimedia Commons

is a Sengoku period Japanese castle located in what is now part of the city of Noshiro, Akita Prefecture, in the Tōhoku region of Japan. The site of Hiyama Castle proper, the outlying Ōdate (大館跡), and Chausu (茶臼館跡) fortifications and the ruins of the temple of Kokusei-ji (国清寺跡) were collectively designated a National Historic Site of Japan in 1979. Read more on Wikipedia

type: military installation
date from: Sengoku period

Source: en.wikipedia.org