Japan Unlocked
Historic Ruins
○ Second 100 Castles

Mizuki

A massive 7th-century earthwork defense wall built in 664 AD across the Chikushi Plain to protect Dazaifu from Tang Chinese and Silla Korean invasion after Japan's defeat at the Battle of Baekgang. The 1.2km-long embankment, up to 13m high with water-filled moats, is the oldest recorded military construction in Japan.

Japanese Name水城
PrefectureFukuoka Prefecture (福岡県)
RegionKyushu (九州)
Castle TypeEarthwork Fort
Year Built664
Designation続100名城
Coordinates33.5167, 130.4667