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Ōmeguri-Komeguri Mountain Castle

Ōmeguri-Komeguri Mountain Castle (大廻小廻山城, Ōmeguri-Komeguri yamajirō) was an ancient castle (also known as a Korean-style fortresses in Japan (朝鮮式山城, Chōsen-shiki yamajiro) located in what is now the Kusakabe neighborhood of Higashi-ku of the city of Okayama, Okayama Prefecture, in the San'yō region of Japan. Its ruins have been protected as a National Historic Site since 2005.[1]
Type:  Korean-style fortresses in Japan (朝鮮式山城, Chōsen-shiki yamajiro)
Built:  c.7th century  

Ōmeguri-Komeguri Mountain Castle  Click to go to Wikipedia