Cultural Heritage, which was listed as a World Heritage Site in June 2014. It will be composed of four cases of sericulture and silk-related cultural goods scattered across three cities and one town, Isesaki, Fujioka and Shiminita, with Tomioka Mill in Tomioka, Gunma Prefecture as the lead. The area of Gunma Prefecture is where the silkworms and silk industry and silk textile industry have flourished since ancient times. With the opening of Tomioka Silk Mill as a government-run model factory in the early Meiji era, the development of Japanese silk production began rapidly. The former home of Yahei Tajima in Isesaki, one of the developers of the Modern Sericulture Act, is a magnificent building that can be said to be the prototype of a modern sericulture farmer. The site of the Takayama Shrine in Fujioka City, which also established the Modern Sericulture Act and contributed to the spread of knowledge and technology in the Sericulture Industry, and the largest Japanese-scale silkworm storage facility in the town of Shiminita, Arafune Fenga, are all the heritage of the valuable silk industry.