Tomioka Silk Mill — UNESCO Industrial Heritage
Tomioka Silk Mill (富岡製糸場, Tomioka Seishijo) is a UNESCO World Heritage Site and Japan's first modern mechanized silk-reeling factory, established in 1872 during the Meiji era's industrialization drive. The mill was built with French technology and Japanese craftsmanship, producing high-quality silk thread that made Japan the world's largest silk exporter by 1900. The mill operated for 115 years (1872-1987), and its brick buildings, wooden-truss architecture, and intact machinery are preserved as a monument to Japan's transformation from feudal society to industrial power.
The site includes the East Cocoon Warehouse (300m long, brick structure housing silkworm cocoons), the Silk-Reeling Plant (original French-built machinery), and worker dormitories. Guided tours (in Japanese, English audio guides available) explain the silk production process — from silkworm cultivation to thread reeling — and the mill's role in women's industrial labor history (female workers lived on-site and learned modern factory skills).
Essential Information
Opening Hours
9:00 AM–5:00 PM (last entry 4:30 PM)
Closed: Closed Wednesdays (or following Thursday if Wednesday is holiday); December 29–January 1
Entrance Fee
¥1,000 adults; ¥500 middle/high school students; elementary and under free | English audio guide: ¥200
Best Season
Year-round indoor heritage site; spring (April–May) and autumn (October–November) for pleasant Tomioka town walking after the mill
Visit Duration
90–120 minutes for full site circuit including East Cocoon Warehouse and silk-reeling plant
Getting There
Access Information
Insider Guide
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