Shōwa

The tiled stone wall of the Okinawa Hotel in Naha, built in 1961, runs 92 metres around the grounds in Ryukyu limestone under red tiles, framing the hotel front.

The guest wing of the Okinawa Hotel in Naha, built in 1961 for a hotel running since before the war, has sunshades and walls of decorative hollow blocks.

The brick building of the Okinawa Hotel in Naha, built around 1949 with a concrete ground floor and brick above, is a rare survivor of early postwar hotels.

On Kuroshima, this 1938 concrete tank at the Kamiyama Residence held rain caught from the main house roof by bamboo gutters, an answer to scarce island water.

A 1930 Okinawan house of 125 sq m under red Ryukyuan tiles, moved into Ryukyu Mura in 2011. Its three-room plan carries a modern porch canopy and glazed doors.

A 13-metre brick chimney from a 1942 farmers' sugar mill in Miyakojima's cane fields: English-bond brickwork, flue arches, wartime requisition and roadside viewing.

The Sueyoshi Family Residence Stone Wall on Kitadaito is an early Showa limestone wall, 69 m long and up to 1 m thick on top, on the west and south of a corner lot.

The Sueyoshi Family Residence Main House on Kitadaito is an early Showa stone home of coursed limestone with concrete corners, registered in 2007 as early housing.

Stone wall of 1953 at the Togei house on Yonaguni Island, 9.5 metres long, dividing the path from the front garden, built of stone dug for the house foundations.

Main house of 1953 on Yonaguni Island: hipped, red-tiled and 7 by 4 bays, with an amahaji veranda, a traditional Yaeyama plan, chagi timber and daimyo bamboo.

Concrete rainwater tank of 1953 beside the kitchen of the Togei house on Yonaguni Island, 1.6 metres high, filled from the gutters through a filter in its lid.

The Toyama Memorial Hall of 1935 in the centre of Kin, Okinawa, is a single-room concrete hall whose only ornaments are an arched porch and an octagonal window.

An early Showa gateway wall in Ishigaki, Okinawa: local awa-ishi laid in level courses about 2 metres high, pairing a 15-metre front run with a U-shaped enclosure.

Concrete lookout built in 1953 by villagers on Taketomi Island as a broadcasting platform, later a viewpoint over the red-tiled village. Climbing is now prohibited.

Pier of 1938 on Taketomi Island, 105 metres of limestone faced with concrete and ramped at the end for low-tide unloading; islanders sailed from here to Iriomote.

Timber building of 1940 on Kitadaito Island that housed and entertained phosphate miners. Two gable-entry wings joined on an I-shaped plan; an inn since 1982.

A plain cement-tiled annex of about 1955 beside the red-tiled main house of the Yagi homestead in Oton, Yaese. Built as a rice store, it now seats diners.

A 1952 wall of Minatogawa limestone on the south edge of the Yagi homestead in Oton, Yaese: four courses, 1.3 m high, 50 m long, turning north to form the entry.

A 1952 household cistern behind the main house of the Yagi homestead in Oton, Yaese: a round rainwater pit with a mortar rim framed by L-shaped limestone blocks.

Built in 1952 in Oton, Yaese, this red-tiled farmhouse keeps the full Okinawan plan: hipped roof, plastered joints, deep amahaji eaves and no front door.