Registered Tangible Cultural Properties of Japan

Built in 1938 in Sakuho, Nagano, Sakae Bridge is Japan's longest-span prewar concrete Lohse arch, designed by Nakajima Takeshi, who pioneered the form.

A sukiya-style ryokan wing designed in 1932 by Arata Endo, who assisted Frank Lloyd Wright. It shaped the modern Japanese inn and now hosts guests as Honenmushi.

A late Edo farmhouse at the heart of a silkworm-egg estate in Ueda, Nagano, joining a thatched home to a tiled two-story block with two ventilation roofs.

A small 1897 granary at the center of a silkworm-egg estate in Ueda, Nagano, with a single upper window, a pent-roofed gable door and wood floors on both levels.

A mid-Meiji rearing house on a silkworm-egg estate in Ueda, Nagano, with a ventilation roof along its whole ridge and windows on both sides of three upstairs rooms.

A late Meiji two-story building on a silkworm-egg estate in Ueda, Nagano, with a clay-sealed, plastered room below for disinfecting tools and a rearing room above.

An 1898 storehouse for family papers on a silkworm-egg estate in Ueda, Nagano, with a crested ridge tile, a copper-roofed entrance and a tatami room upstairs.

A small late Meiji storehouse for household miso on a silkworm-egg estate in Ueda, Nagano, with an earth floor below and clay packed even under its pent roof.

A late Edo storage building on a silkworm-egg estate in Ueda, Nagano, with two rearing rooms upstairs, a ventilation roof on the ridge and a cantilevered west wall.

The front gate of a silkworm-egg estate in Ueda, Nagano: a late Edo gate moved here in mid-Meiji, 2.6 meters wide, with plank doors, flanking walls and a wicket.

A tiny late Edo Inari shrine on a stone wall at the corner of a silkworm-egg estate in Ueda, Nagano, with proper bracket sets and a gently swelling gabled roof.

West of the main house in Saku, Nagano: a slender 6.6-by-3.7m earthen storehouse, boarded floor, with a miso room attached beneath an offset roof. Registered 2011.

Squeezed between two neighbours on a stone wall in Saku, Nagano: an earth floor, exposed roof timbers, a built-in rice bin, and a roof with no gable ends. Meiji era.

The smallest of four registered buildings on a Saku farmstead in Nagano: a near-square timber box of 21 square metres, throwing out a lattice and a bay window.

On a stone wall in Saku, Nagano, this late Edo storehouse gave up a ground-floor corner to a well house and carries its pantile roof clear above the earthen shell.

A 1942 tea house on school grounds in Iizuna, Nagano. Two rooms share one mizuya so a whole class could practise, and its sukiya detailing won registration in 2016.

Sangoso in Karuizawa, Nagano, a late Edo thatched farmhouse of the Kofu basin moved here in 1934 with a concrete basement, is an early example of a relocated minka.

The Shiohara Family Residence Rice Storehouse in Matsumoto is a granary of about 1907, registered in 2004 for its form, with namako walls and a floating roof.

The Shiohara Family Residence Silkworm Rearing House in Matsumoto is a long 1919 silk-raising building, registered in 2004, tall and with few openings.

The Shiohara Family Residence Main House in Matsumoto is an early Taisho farmhouse, registered in 2004, with a long ridge ventilator over upstairs silk rooms.