Shōwa

The largest hall in the JR Tadotsu Works, this 1931 reinforced-concrete building runs a 114.4-meter ridge, with butterfly roofs lighting a vast column-free floor.

Just west of Workshop No.17, this 1939 steel hall carries a Pratt truss over a 43.9-meter ridge, forming with its neighbor the historic core of the Tadotsu Works.

Inside the main gate of the JR Tadotsu Works, this plain 1935 timber hall shows clapboard walls and round vent windows in its mortar gables, and now serves as a PR room.

Built in 1941 south of Workshop No.17, this warehouse carries a bolted timber truss shaped like steel, an improvisation forced by wartime shortages of metal.

Adjoining Workshop No.17 to the south, this 1936 steel building carries a Warren truss over a 48.1-meter ridge, unlike its concrete and timber neighbors.

The north storehouse of the Shioda Family Residence in Shodoshima, a two-storey earthen vault on a cut-granite base beside the brewery path, registered in 2002.

The nagayamon gatehouse and wall of the Shioda Family Residence in Shodoshima, with charred-cedar and black plaster and a genji-bei wall on a riverside stone base.

The east annex of the Shioda Family Residence in Shodoshima, a half-hipped building with a lattice window facing the river, said by tradition to have first been a shop.

The south storehouse of the Shioda Family Residence in Shodoshima, the smallest of the five, standing on the stone embankment at a bend of the Umaki River.

Shimizu Kannon-dō is a modest Buddhist hall standing beside a legendary spring in the Karato district of Teshima island, Kagawa Prefecture. Together with the adjacent communal water facility and Shimizu Shrine, it forms a unique cultural landscape where water and faith are inseparably intertwined, registered as a national Tangible Cultural Property in 2001.

Discover the Shimotakase Simple Post Office, a 1935 Western-style building originally built as the Maruoka Kimono Shop in Mitoyo City, Kagawa. This Registered Tangible Cultural Property features a stunning central atrium with skylights, inspired by Kyoto's modern architecture. Still in use as a working post office, it offers a unique glimpse into early Showa commercial architecture in rural Shikoku.

Discover Hori Family Clock Shop, a Registered Tangible Cultural Property in Marugame, Kagawa. This early Shōwa-period kanban-style building features a Western-inspired mortar facade with gable ornaments, originally built as a clinic and now a beloved local landmark near Marugame Castle.

Near the guest rooms of the Yamada house, a garden gate barely a meter wide is roofed with bold arched tiles, an early-Showa accent between the south and west gardens.

The Nogi Shrine Temizusha (hand-washing pavilion) in Zentsuji City, Kagawa Prefecture, is a Registered Tangible Cultural Property built around 1935 as part of a shrine complex dedicated to General Nogi Maresuke. Featuring a modernized Shinmei-zukuri architectural style inspired by Ise Grand Shrine, it was registered along with the main hall, worship hall, and torii gate in 2002. Located alongside the Kagawa Prefecture Gokoku Shrine and near the birthplace of Kobo Daishi, it offers visitors a unique window into Japan's early Showa-era shrine architecture and modern history.

A steel tower off Kochi: 64 spiral steps drop seven meters under Tatsukushi Bay to round windows on the reef. Built 1971, registered 2022, closed since May 2026.

In the old merchant town of Tano, Kochi, this small 1938 storehouse shows Tosa craft clearly: thick lime-plaster walls banded by four tiers of rain-cutting tiles.

In Tano, Shikoku's smallest town, this 1937 cultural property gave a coastal fishing master's home the formal entrance and gentry rooms of a samurai house.

Built in 1938 for the Arisawa, who owned Tano's fishing fleet, this timber annex keeps a beach-facing passage—a registered cultural property in old-town Tano, Kochi.

In the fishing town of Usa in Kochi, this around-1947 registered building holds four rooms set in the order dried bonito is made: boiling, smoking, mold, storage.

In Usa, a Kochi town known as the birthplace of Tosa-bushi, these two 1947 buildings are where the Izumi family prepared and sun-dried bonito for katsuobushi.