Shōwa

Maze Dam Management Bridge in Honjo, Saitama: a 1938 three-span concrete bridge below the dam, its piers arched at the base and grooved for stop logs. Now a path.

Matsumoto Kyoshitsu Main House in Chichibu, Saitama: a two-storey wooden townhouse built as an inn in 1929 on the old Chichibu road, now used as a tutoring school.

A 1931 Kawagoe house with convex irimoya roofs, a coffered formal room, and a corridor splitting entrance from living space. Registered in 2014; exterior view only.

A 1.7-metre timber gate of about 1931 on Kawagoe's Hachiman-dori, with a gently convex copper gable roof and slatted wing walls. Registered 2014; street view only.

This two-metre gate of 1930 in Chichibu is a registered cultural property, with adzed naguri surfaces on its posts and a single tier of widely spaced rafters.

Designed in 1930 by Chichibu-born architect Yamada Jun, this registered house crosses gabled roofs at differing heights over a Western exterior and Japanese rooms.

A 1934 scratch-tile bank in Gyoda, Saitama, registered in 2005, built for the Oshi Savings Bank with decorated cast stone and few openings on the windy west side.

Built around 1930 on a corner of Chichibu's Banba-dori, Yasudaya raises a mortar parapet with a cornice and acanthus panels. Registered 2004, still a butcher's shop.

The round kindergarten building in Warabi, Saitama, designed by Sakamoto Kanao in 1963, rings a central playroom with wedge-shaped classrooms under a roof terrace.

Railway bascule bridge of 1931 over the Chitose Canal in Yokkaichi, Mie, by Yamamoto Utaro; its span rises to 80 degrees, the only movable rail bridge in use.

Haiseiden in Iga, Mie is a 1942 Important Cultural Property marking poet Matsuo Basho's 300th birth anniversary, shaped to evoke the wandering poet in travel attire.

A three-mat early Showa tea room in the Akai Family Residence garden in Iga, with a full-height entrance, a round window and a smoked-bamboo alcove post.

The Asahi Elementary School Circular Building in Mie, a 1962 four-storey round school with a column-free hall, is a peak work of Sakamoto Kanao. Registered 2013.

Anorisaki Lighthouse in Shima, Mie: a 16-metre square concrete tower of 1948 that replaced an 1873 wooden light at the mouth of Matoya Bay. Open to climb.

Amikan Head Office in Yokkaichi, Mie: an early Showa office of timber-framed concrete with a rounded corner, scratch tile walls, tall windows and a rooftop tower.

Amikan Head Office Main Gate in Yokkaichi, Mie: an early Showa concrete gate whose 3.1-metre posts have domed tops, flanked by a long brick wall on either side.

Amikan Head Office Brick Wall in Yokkaichi, Mie: a 46-metre early Showa brick wall with pilasters every 2.2 metres, a solid reminder of modern industry.

Ishikawa Sake Brewery North Archive Storehouse is an early Showa vault in Yokkaichi, built to copy its late Meiji neighbour's white plaster and eaves band.

Reading room of 1932 in Ishiyakushi, Suzuka, Mie, a library given by poet Sasaki Nobutsuna for his sixtieth birthday, with cream walls and large windows.

An early Showa reinforced concrete room of 12 square metres in Ise, with roof tiles along its flat-roof parapet and washed aggregate walls. Registered in 2001.