Registered Tangible Cultural Properties of Japan

A 40.6 m round brick slow sand filter at Shimonoseki's Takao plant, still in use; its shallow 1.2 m water, granite rim and the open question over its build date.

A 1906 round brick valve house at Shimonoseki's Takao plant with a granite cornice and twelve-sided roof; its role in slow sand filtering and which parts are later.

Completed in 1926 as a naval fuel depot director's residence, this 36-square-metre Shunan wing keeps a coved coffered reception room behind a half-timbered gable.

This 238-square-metre wing of a 1926 naval residence in Shunan retains its ten-mat shoin rooms, carved transoms and a long veranda beam left as a round log.

A two-storey timber pavilion of 1873 at Hofu Tenmangu, its floor carried on brackets cut for a five-storey pagoda that was never raised. Registered in 2012.

Raised in 1888 to guard silk from fire and damp, this two-storey plaster storehouse in Hofu has an unusual frame of octagonal beams and now hosts a concert series.

Built in 1918 by Kyoto carpenters for a Hofu kimono merchant, this registered house shifts between tea-room informality and a formal 12.5-mat reception room.

One plastered shell split by a cross wall: food kept to the south, tools to the north under a second floor. Built around 1888, it fronts a Hofu merchant compound.

The gate of Zuishoan, a Soto Zen temple in Ube: thatched, single-bay, built in 1937, with a Zen balustrade above and the Shimazu crest carved twice. Registered 2021.

Built in 1886 as a stopgap home for Iwakuni's former daimyo, this two-storey house sets a thirty-mat upper hall to borrow the Kintaikyo bridge and castle hill.

A cusped-gable gate of about 1901 and a 79-metre latticed fence of 1909 enclosing the medieval main hall of Sumiyoshi Shrine, Shimonoseki. Registered in 2017.

A three-bay tower gate of 1901 at Sumiyoshi Shrine, Shimonoseki, revived from a Muromachi gate demolished in 1870, with a regional front eave. Registered 2017.

The Toishi Hachiman Shrine Ritual Vessel Storehouse of 1940 in Shunan, Yamaguchi hides a closed store behind boarding shaped to imitate the enclosure wall.

The Toishi Hachiman Shrine Sacred Food Preparation Hall of 1940 in Shunan, Yamaguchi matches the storehouse opposite, balancing the precinct around the halls.

The Toishi Hachiman Shrine Gate and Side Wall of 1940 in Shunan, Yamaguchi form a four-legged gate 4.2 meters wide with flanking walls running 12 meters in total.

The Toishi Hachiman Shrine Lattice Wall runs 58 meters around the sanctuary in Shunan, Yamaguchi, its hexagonal bars shifting in width as a visitor walks past.

The Toishi Hachiman Shrine Purification Pavilion of 1941 covers 3.1 square meters beside the approach in Shunan, Yamaguchi, and shelters a granite basin.

The Toishi Hachiman Shrine Worship Hall in Shunan, Yamaguchi is a 1940 rohaiden, a gatehouse floored over for worship, with wings to each side and a copper roof.

The Toishi Hachiman Shrine Offering Hall of 1940 joins sanctuary to worship hall in Shunan, Yamaguchi, with a split floor, stepped roof and ground glass shutters.

The Toishi Hachiman Shrine Main Hall in Shunan, Yamaguchi is a three-bay nagare-zukuri sanctuary of 1940, rebuilt after a fire and covering 39 square meters.

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