Chubu/Central Japan

At about 16.2 m, the Seihoku-sumi Turret is the second-largest three-tiered turret surviving from the Edo period, and may be reused from Kiyosu Castle's keep.

4 spots in Nagoya Castle's Ofukemaru: foundation stones still scorched by the 1945 air raids, and a 1,400-year-old burial chamber moved here from Shimane.

The main keep has been closed to visitors since 2018 — exterior views only. Four spots in the northern Honmaru, including a genuine gate relocated here in 1972.

Nagoya Castle's biggest highlight. The rebuilt Honmaru Palace takes over an hour to see and stops admitting visitors at 4:00 pm. Plus the Kiyomasa Stone.

3 structures from around 1612 that survived the 1945 air raids: the Omote Ni-no-mon Gate and the Southeast and Southwest turrets. Four spots, 30-50 minutes.

3 monuments in Nagoya Castle's Ninomaru Garden: the 1868 purge that executed 14 Owari retainers, the domain precept stone, and Kiyomasa hauling a stone.

3 spots in Nagoya Castle's Ninomaru Garden: the site where young Oda Nobunaga is said to have lived, a secret escape route, and a teahouse serving matcha.

3 Edo-period remains in Nagoya Castle's Ninomaru Garden. Only a short stretch of the clay-and-gravel Nanban wall survives, so find it before you go.

3 spots on Nagoya Castle's east side: camellias and cherry blossoms in Ninomaru Garden, the East Gate peony beds, and a gate site whose gate was moved away.