Registered Tangible Cultural Properties of Okayama

An 1902 brick book store at Okayama Asahi High School, the elder of two fireproof towers, banded with cornices and iron-grilled windows. It survived the 1945 raid.

Built in 1927 at the centre of a Kurashiki school campus, this timber hall still hosts judo and kendo practice. A rare surviving prewar budojo, registered in 2007.

Built in 1909 as a compost shed for Okayama's agricultural school, this small brick building carries a thatched roof on timber trusses. Registered in 2007.

Built in 1922 at Okayama University's Shikata Campus, this gate raises four red brick piers on granite bases, crowned with Secession-style capitals and copper lamps.

A 22-square-metre timber lodge of 1922 beside the main gate of Okayama University's Shikata Campus, roofed in scalloped natural slate on an irregular hexagonal plan.

Built in 1911 as the guardhouse of the Imperial Army's 17th Division headquarters, this timber building is now a free exhibition room on Okayama University's campus.

Okina Bridge in Tsuyama City, Okayama Prefecture, is a 1926 reinforced concrete bridge featuring Art Deco-style balustrade pillars. Its fully preserved original brick pavement, rediscovered beneath modern asphalt, earned it recognition as both a Registered Tangible Cultural Property and a JSCE Heritage of Civil Engineering.

At the centre of Oku Kōmyōen, a Hansen's disease sanatorium on Nagashima, this 1941 timber hall bears three arched windows and was listed for its striking design.

This 1939 wooden schoolhouse, Kōmyō Gakuen, taught children at the Oku Kōmyōen sanatorium on Nagashima, a rare surviving school built inside such an institution.

This 1949 granite pier at Oku Kōmyōen faces the mainland across a strait, the boat landing that linked the Nagashima sanatorium before the bridge of 1988.

This 1938 concrete cable incline at Oku Kōmyōen lifted supplies from the wharf to the Nagashima sanatorium, back when everything reached the island by boat.

On high ground at Oku Kōmyōen stands a tiny 1943 concrete hōanden that once enshrined the emperor's portrait, a rare survivor at a Hansen's disease sanatorium.

The Okutsuso Main Building, a Registered Tangible Cultural Property built in 1927, stands in the Okutsu Onsen district of Kagamino, Okayama. Its legendary Kagi-yu bath features water rising at 42.6°C directly through the bathtub floor — a foot-source spring experience found at fewer than 30 facilities in all of Japan. Discover this historic wooden inn beloved by printmaker Shiko Munakata and former Prime Minister Tsuyoshi Inukai.

The Okutsu No. 1 Covered Conduit is a 122-metre reinforced-concrete channel faced in coursed stone, built in 1932 on the upper Yoshii River and registered in 2006.

The Okutsu No. 1 Aqueduct is an 18-metre reinforced-concrete rigid-frame bridge of 1932 that carries the power station's canal water across the Kirotani-gawa in Okayama.

The Okutsu Oro-tani-gawa Intake Weir is a small 1932 gravity weir, 4.2 metres wide with an arched sediment outlet, feeding a branch canal of the scheme in Okayama.

The Okutsu Confluence Basin is a 160-metre reinforced-concrete channel of 1930 that gathers surplus and tailwater from the Kamisaihara station for reuse in Okayama.

The Okutsu Kirotani-gawa Intake Weir is a 12-metre gravity weir of 1932 whose intake gate, revetment and arched inlet all survive complete in Okayama.

The Okutsu No. 3 Aqueduct is an 18-metre reinforced-concrete three-span rigid-frame bridge of 1932 carrying a trapezoidal water flume over the Yu-no-tani-gawa in Okayama.

The Okutsu Power Station Regulating Reservoir, nestled in the mountains of Kagamino Town, Okayama Prefecture, is a nationally Registered Tangible Cultural Property built in 1933. This massive reinforced concrete structure features an exceptionally rare buttress-style construction and covers nearly 9,500 square meters. Located near the historic Okutsu Onsen hot springs and the scenic Okutsu Gorge, the site offers a unique blend of industrial heritage and natural beauty.