Iwakisan Kōgoishi

About

Iwakisan Kōgoishi was an ancient castle (also known as a Korean-style fortress (Chōsen-shiki yamajiro) located on Mount Iwaki (Iwaki-san) in the city of Hikari, Yamaguchi Prefecture, in the San'yō region of Japan. Its ruins have been protected as a National Historic Site since 1951. Shrines affiliated with Shintō Tenkōkyo, a Japanese new religion, are located immediately to the south of Iwakisan Kōgoishi.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.