Iwakuni Castle

photo by z tanuki · CC BY 3.0

photo by そらみみ · CC BY-SA 4.0

Built in 1608, razed to the ground after just 7 years by law: one castle per domain.

The first lord of Iwakuni, Kikkawa Hiroie, completed the castle in 1608 on a 200-metre mountain above the Nishiki River. Seven years later, in 1615, the Tokugawa shogunate imposed the ‘one castle per province’ law (一国一城令) and had it demolished: one of the shortest-lived Japanese fortresses. The keep visible today is a 1962 reconstruction in reinforced concrete, and it does not even stand where the original stood: it was moved about 50 metres to the east, to give visitors the view over the city that the real base did not offer. A 1995 excavation uncovered the real foundations, lower down and further back.

A mountain castle of the Edo period, seat of the Kikkawa domain (a branch of the Mōri) until it was dismantled after only seven years. It is castle no. 74 of the 日本100名城 (the hundred famous castles of Japan). You reach it by the Iwakuni ropeway from Kikkō Park, at the foot of the mountain, or on foot along a trail of about 2 km.

ℹ️ The keep is open 9:00–16:45 (last entry 16:30), ticket 350 yen adults / 200 yen children; combined ticket with Kintaikyo and the ropeway 1,550 yen adults / 700 yen children. Ropeway 9:00–17:00, departures at :00, :15, :30 and :45, the ride up takes about 3 minutes; fully closed for annual maintenance from 13 January to 17 February 2026 and on two other separate days (29 October, 26 November 2026). No lift inside the keep.

🚉 山頂駅 · 4 min walk

Sources: kankou.iwakuni-city.net · iwakuni-kanko.com · kankou.iwakuni-city.net · ja.wikipedia.org · ja.wikipedia.org

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