Art and artifacts about samurai life, including some remarkable sword exhibits. The admission is a bit steep, but you'll find better English information here than elsewhere.
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旧目加田家住宅 Kyū metaka-ke jūtaku
The home of another family of Kikkawa retainers. (Don't try to enter either, though; they're still private residences.)
吉香公園
A pleasant green spot on the other side of the bridge, with some lovely flower gardens, large sprinklers for a soak on a summer day, and a popular cherry blossom viewing spot in April. Expect to meet some chatty locals here. The entrance to the park is overseen by a statue of Hiroyoshi Kikkawa, the feudal lord who directed the construction of the Kintai-kyo; the park was built on the grounds of the Kikkawa family home. There are two museums in the park for visitors interested in samurai culture and feudal Iwakuni.
徴古館
A library with historical documents and scroll paintings.
吉川史料館 kikkawa shiryōkan
Dedicated to the aforementioned family of warlords, and including some of their weapons.
長屋門 Nagaya-mon
At the south end of the park, you'll see the dramatic gate, the home of the Kagawa family who were the Kikkawa's principal samurai retainers.
岩国城 Iwakuni-jō
Although the original castle only stood for seven years, that was excuse enough for a reconstruction during the 1960s. The foundations of the original lie a short distance behind the new one; the builders apparently decided to move it closer to the cliff for scenic purposes. Inside the castle is a small historical museum.