Two Granite Pillars That Students Still Walk Through Every Morning
At the southern edge of Aichi Prefectural Iwazu High School, in the city of Okazaki, two squared granite pillars frame the main entrance. Pupils pass between them on their way to class, just as they have for generations. The pillars look, at first glance, like the sturdy gateposts of any older Japanese school. Look a moment longer and the details begin to register: the way only the four corners of each shaft have been cut clean while the rest of the stone face stays rough and projecting, the broad capstone resting on top, and the smooth hemisphere of granite crowning each pillar, fifty-four centimetres across.
These are the original gateposts of what opened in 1935 as the Iwazu Agricultural and Commercial School, a vocational school founded by the town of Iwazu in what was then Nukata District. The pillars themselves were raised two years later, in 1937, once the permanent campus was completed. The school changed names and status several times over the following decades, becoming a prefectural institution and eventually, in 1949, Aichi Prefectural Iwazu High School. Through all of it, the gate stayed.
The structure is recorded as stone-built, with a frontage of 9.1 metres and smaller flanking pillars to the north and south. The gate was shifted to a slightly different position on the grounds in 1985, but the original column bases still sit in the earth beneath it, and the design has carried through almost untouched.
Why a School Gate Became a Cultural Property
The story behind the registration says a good deal about how ordinary places acquire value. In 2015, alumni and residents began telling the Aichi Prefectural Board of Education that the old gates at their former schools deserved attention. The board surveyed all fifty-four prefectural high schools and found that thirteen of them still used, as working entrances, gateposts built before the 1948 school-system reform. A research team from Nagoya University, led by Professor Yasuhiko Nishizawa, documented each one with photographs and drawings.
In June 2017 the gates of all thirteen schools were entered together onto the national register of Tangible Cultural Properties. It was the first time the gateposts of Japan's prefectural high schools had been recognised this way. Iwazu's gate received the registration number 23-0485 on 28 June 2017.
It helps to know what "Registered" means here. Unlike a National Treasure or an Important Cultural Property, a Registered Tangible Cultural Property is a lighter category, created for buildings and structures that remain in daily use. The aim is not to freeze them behind a rope but to protect them while life carries on around them. Every one of the thirteen schools chose to keep its gate in service rather than retire it to a quiet corner. Iwazu's pillars were registered under the criterion recognising them as a model of their type of design.
What to Notice When You Stand Before It
The most telling detail is the stonework. The surface treatment, known in Japanese as edo-kiri kobu-dashi, leaves the centre of each face rough and slightly bulging while the margins are dressed to crisp, straight lines. The contrast catches sidelight in the late afternoon, when the rough faces throw small shadows and the squared edges read sharp against them. On top sits the capstone, and above that the plain granite hemisphere, an unusual finial that gives the gate its particular silhouette.
That choice of granite is no accident. Okazaki is one of Japan's three great centres of stoneworking, alongside Makabe in Ibaraki and Aji in Kagawa. Skilled masons have shaped the local stone here since the late medieval period, and Okazaki stonecraft was named a national traditional craft in 1979. The gate is a workaday cousin of the celebrated stone lanterns this city is known for, cut from the same fine granite by the same long tradition of hands.
One practical note shapes any visit. This is a functioning high school, and the gate is a working entrance, not an exhibit. Okazaki city lists the property as open to viewing, which means you are welcome to look from the public road and photograph the pillars from outside. Take in the gate without entering the grounds or interrupting the school day, and you will see it exactly as it is meant to be seen: in use.
Around the Gate
Iwazu High School sits in the northern part of Okazaki, a short ride from the city centre. From Higashi-Okazaki Station on the Meitetsu Nagoya Main Line, take a Meitetsu bus to the Higashi-Kuramae stop and walk about five minutes east.
Okazaki itself rewards a longer stay. The city is the birthplace of Tokugawa Ieyasu, the warlord who founded the shogunate that ruled Japan for more than two and a half centuries, and Okazaki Castle and its surrounding park mark the site. The city is also the home of Hatcho miso, a dark, long-aged soybean paste produced in two historic breweries you can tour. For anyone drawn to the gate's stonework, the Okazaki stone-craft district offers a closer look at the granite tradition that gave the pillars their finish.
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- Find tours, activities & transport passes near Former Gatepost of the Main Gate of Aichi Prefectural Iwatsu
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Q&A
- Can I go inside the school to see the gate?
- No. Iwazu is an active high school, and the gate is a working entrance rather than a tourist site. Okazaki city lists the property as open to viewing, so you can look at and photograph the pillars from the public road outside, but please do not enter the grounds or disturb school activities.
- What actually makes these pillars special compared with an ordinary gate?
- Three things: the rusticated stone finish that dresses only the corners and leaves the faces rough, the unusual fifty-four-centimetre granite hemisphere crowning each pillar, and the history. They are original 1937 gateposts that have stayed in continuous use, and they were registered in 2017 as part of the first group of prefectural high school gates ever recognised as cultural property.
- How is a "Registered" property different from an Important Cultural Property?
- Registration is a lighter level of protection designed for structures still in everyday use. It encourages owners to preserve a building while continuing to use it, with fewer restrictions than the designation given to National Treasures or Important Cultural Properties. The thirteen school gates were registered precisely because they remain working entrances.
- Are these the original pillars, or replacements?
- They are original, built in 1937. The gate was moved to a slightly different spot on the campus in 1985, but the original column bases remain underground and the design was preserved through the relocation.
- What else is worth seeing nearby?
- Okazaki Castle and its park, on the birthplace of Tokugawa Ieyasu, are the main draw. The city is also known for Hatcho miso and for its centuries-old granite stonecraft, the same tradition that shaped the gate.
Basic Information
| Name | Former Main Gate Pillars of Aichi Prefectural Iwazu High School (former main gate of the Iwazu Town Aichi Iwazu Agricultural and Commercial School) |
|---|---|
| Location | 5 Aza-Baba, Higashi-Kuramae-cho, Okazaki City, Aichi Prefecture |
| Category | Registered Tangible Cultural Property (structure); registration no. 23-0485 |
| Registered | 28 June 2017 (Heisei 29) |
| Date built | 1937 (Showa 12); relocated 1985 (Showa 60) |
| Count | 1 unit |
| Structure | Stone-built, granite; frontage 9.1 m, with north and south flanking pillars |
| Owner | Aichi Prefecture |
| Access | From Higashi-Okazaki Station (Meitetsu Nagoya Main Line), Meitetsu bus to Higashi-Kuramae, then about 5 minutes on foot |
| Viewing | Viewable from outside; the school grounds are not open to visitors |
References
- National Database of Cultural Properties, Agency for Cultural Affairs
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00011715
- Cultural Heritage Online (NII)
- https://bunka.nii.ac.jp/heritages/detail/247011
- Okazaki City: Registered building, former main gate pillars of Iwazu High School
- https://www.city.okazaki.lg.jp/1300/1304/1332/p022067.html
- Aichi Prefecture: Announcement of newly registered tangible cultural properties (structures)
- https://www.pref.aichi.jp/soshiki/bunkazai/tourokubunnkazaikenzoubutsu.html
- Aichi Prefectural Iwazu High School: School history
- https://iwazu-h.aichi-c.ed.jp/cms/page-7/page-46/page-150.html
- Aichi Prefecture: Okazaki stonecraft (traditional craft)
- https://www.pref.aichi.jp/sangyoshinko/densan/402.html
Last verified: 2026.06.15