The steepest gassho-zukuri roofs in Ogimachi are pitched at nearly sixty degrees, an angle calculated not for beauty but for snow that can pile two metres deep by February. The word gassho means hands joined in prayer. The form is functional. Beams are lashed with straw rope rather than nailed, so the frame flexes under load instead of splitting, and a well-maintained roof of susuki thatch lasts thirty to forty years before the village re-thatches it in a single collective day. Shirakawa-go sat outside the ordinary current of Japanese history for centuries. The Shokawa river valley was hemmed by mountains, unreachable by road for much of the year, and the households that survived there grew large by necessity — extended families of twenty or thirty under one roof, working the attic floors as silkworm lofts and producing saltpetre for gunpowder beneath the floorboards. Isolation shaped the architecture as surely as snowfall did. When the Miboro Dam flooded part of the valley in the 1960s, dozens of farmhouses were dismantled or lost, and a preservation movement formed around the phrase uranai, kasanai, kowasanai — do not sell, do not rent, do not destroy. UNESCO inscribed Shirakawa-go and the Gokayama hamlets of Ainokura and Suganuma as a World Heritage Site in 1995. That listing, alongside the Tokai-Hokuriku Expressway opened through the mountains in 2008, is why a kanazawa to shirakawago bus tour is now a straightforward morning's drive rather than an expedition. The coach corridor that carries most visitors traces the same river the valley was named for, threading tunnels beneath ridges that once made the village unreachable. Roughly 1,500 people still live in Shirakawa-mura, and Ogimachi remains a working settlement rather than a museum campus — rice paddies between the houses, laundry on the lines, a village office with a phone that answers. Entry to the village itself costs 0 JPY; the toll is charged instead on parking and on the individual houses that open their interiors, among them the three-storey Wada House and the Kanda House. Kanazawa Shirakawa-go day trips reach the Shiroyama viewpoint above the settlement, where the roofs read as a single grain running with the valley. The Gokayama hamlets over the Toyama border are smaller and quieter, and travellers weighing kanazawa to shirakawago bus tour tickets often find the two clusters described as one heritage landscape. They are. Both preserve a building tradition that survives only because its keepers refused to let it go.