Kii Castle, Korean-style mountain fortress in Kiyama and Chikushino, Japan.
The fortress extends across 60 hectares with earthen ramparts and stone walls stretching 3.9 kilometers around Mount Kiyama at 404 meters elevation.
Engineers and craftsmen from Baekje constructed Kii Castle in 665 CE as part of Emperor Tenji's defensive network following the Battle of Hakusukinoe.
The castle ruins contain traces of 40 buildings, gates, and artifacts that demonstrate the architectural methods used in seventh-century Japanese fortifications.
Visitors can reach the castle site using the geographical coordinates 33.445 latitude and 130.513056 longitude, offering views of Hakata Bay and Ariake Sea.
Archaeological excavations revealed specialized water gates in the castle design, engineered to prevent erosion of the fortification structures.
Location: Kiyama
Location: Chikushino
Inception: 665
Founders: Okurai Fukuru, Shihi Fukubu
Part of: Continued Top 100 Japanese Castles
Website: https://town.kiyama.lg.jp/kiji0031236
GPS coordinates: 33.44498,130.51362
Latest update: May 15, 2025 06:50
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