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Iga-Ueno Castle

Little knownBarely documented in English. This is the kind of place the site exists for.

調査・執筆 Hinato

Iga-Ueno Castlecastlestone wallsTodo Takatorasamurai

Photo: z tanuki / Wikimedia Commons (CC BY 3.0) · original

Iga-Ueno Castle (伊賀上野城) is a reconstructed castle (rebuilt in 1935) famous for having Japan's tallest stone walls — the ramparts reach 30 meters high without mortar, among the highest castle walls in Japan. The walls were engineered by Todo Takatora, a legendary castle architect of the Edo period who designed over 20 castles. The white-walled castle keep (三層, three-story donjon) sits atop the stone ramparts, creating a striking vertical composition visible across Iga City.

The castle interior functions as a museum displaying samurai armor, swords, historical documents, and exhibits on Todo Takatora's castle-building techniques. The top floor provides panoramic views over Iga City and surrounding mountains. The castle grounds feature traditional Japanese gardens, tea houses, and seasonal cherry blossoms (late March–early April) and autumn foliage (November). The castle is smaller and less touristy than Himeji or Osaka castles but architecturally significant due to the engineering achievement of its stone walls.

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106 Uenomarunouchi, Iga. Near Iga-Ueno Station. Entry: ¥500 adults, ¥200 children. Visit duration: 45–60 minutes. Combine with nearby Ninja Museum (a short walk, ¥800). Cherry blossom season: late March–early April.

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**Stone wall viewing:** The castle's 30-meter stone walls are best viewed from the moat's edge on the west side (opposite the main entrance). The sheer vertical drop and massive scale of the walls are most impressive from this angle — bring a wide-angle lens to capture the full height. The walls were built using 'uchikomihagi' (打込接ぎ) technique where stones are shaped to fit tightly without mortar, creating interlocking structural integrity. Information plaques (English available) explain the engineering techniques. **Interior highlights:** The castle keep's interior is a modern reconstruction (1935) — not historically authentic but functional as a museum. The third floor displays samurai armor and swords from the Todo clan. The top floor observation deck offers views over Iga City, the ninja museum, and distant mountains. The climb involves steep wooden stairs (typical of Japanese castles). Photography is allowed inside (no flash). The museum is modest — focus on exterior architecture and stone walls rather than interior exhibits. **Combined visit:** Iga-Ueno Castle and the Ninja Museum are 5 minutes apart on foot — combine both for a half-day Iga itinerary (3–4 hours total). Visit the castle first (less crowded in early morning), then the ninja museum for the 13:00 or 14:00 ninja show. Lunch at nearby restaurants (Iga beef or udon shops near the castle) completes the visit. Iga is a day trip from Kyoto, Osaka, or Nagoya (by train).

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