Guide
The Takayama-sha Site is a designated National Historic Site located in Fujioka City, Gunma Prefecture. This location served as the headquarters for Takayama-sha, a center for sericulture (silkworm rearing) improvement that played a pivotal role in the development of Japan's silk industry during the Meiji era. The founder, Chogoro Takayama, established the 'Seion-iku' method—a technique combining ventilation with heat—which revolutionized the industry. The site is a component of the UNESCO World Heritage 'Tomioka Silk Mills and Related Silk Industry Sites.' Visitors can observe a collection of buildings reflecting architectural styles from the late Edo to early Meiji periods, most notably the two-story main house featuring characteristic 'Yagura' (skylights) used for ventilation and temperature control.
The history of Takayama-sha is deeply tied to Chogoro Takayama, who began his work in 1855. While the prevailing method of the time focused solely on ventilation, Takayama developed the 'Seion-iku' technique, which integrated heat to ensure stable silkworm rearing even in colder regions. By 1884, Takayama-sha had grown into a major educational institution, attracting students from across Japan and even from overseas, including China, Korea, and Taiwan. It functioned as a central hub for spreading advanced sericulture techniques, supporting Japan's modernization through both technology and education.
The most striking feature is the collection of buildings that demonstrate historical sericulture technology. The two-story main house, built in 1891, is famous for the three 'Yagura' (skylights) protruding from the roof, designed specifically to manage the air and temperature required for silkworms. The grounds also include a longhouse gate, mulberry storage facilities, and work sheds, providing a vivid picture of the daily life and labor of the era. These structures serve as precious primary sources for understanding how Japan's modern silk industry was built.
As the site focuses on outdoor and indoor observation of historical structures, it is accessible throughout the year. For the best experience in observing the intricate details of the skylights and architectural structures, we recommend visiting during bright, daylight hours. The surrounding natural scenery also changes with the seasons, adding to the historic atmosphere.
At the Takayama-sha Site, you can connect with the history of the people and technology that fueled the Japanese silk industry. Walking through the interior of the buildings allows you to understand the sophisticated level of historical sericulture through its structural design. Being part of a UNESCO World Heritage site, the experience offers a sense of the atmosphere and lifestyle that textbooks alone cannot convey.
The site is closely linked to other important parts of the 'Tomioka Silk Mills and Related Silk Industry Sites' UNESCO heritage, such as the Tomioka Silk Mill, the former residence of Yahei Tajima, and the Arafu Wind Cave. Exploring the Fujioka and Isesaki areas will provide a comprehensive understanding of Japan's industrial modernization.
Because the site contains historical buildings and unpaved paths, we highly recommend wearing comfortable walking shoes. To protect these precious historical assets, please do not enter restricted areas or touch the exhibits. Regarding photography, please follow local instructions regarding any restrictions inside the buildings. As the site is managed by Fujioka City and is no longer a residence, visitors are asked to maintain a quiet and respectful atmosphere.