Meiji

The Iburodanigawa Sabo No. 3 Dam, standing in Minobe, Soja City, Okayama Prefecture, is a large stone erosion-control dam built around 1900. With a total height of approximately 12 meters and a crest length of 73 meters, its massive dry-stacked masonry is exceptional among surviving Meiji-era sabo structures and was added to Japan's National Register of Tangible Cultural Properties in 2002. As the symbolic starting point of organized erosion-control engineering in Okayama, the dam now anchors the Iburodanigawa Sabo Park, where visitors can quietly trace more than a century of disaster-prevention history.

The Oga Family Residence Inner Storehouse in Okayama guards 55 square metres behind iron-grilled windows, thick plaster doors and a boarded lower wall.

The Oga Family Residence Detached Reception Room in Okayama turns its 8-mat sukiya room towards a garden said to have come from a nearby domain villa.

Formerly the Mimamoridono, this 48 square metre pavilion of 1885 issues amulets and tablets, and mirrors the shrine office across the court. Listed in 2024.

Built in 1885 as the Mikedono, a hall for sacred offerings, this 46 square metre pavilion is now the priest's room and the shrine's reception. Listed in 2024.

An 1885 hall of 262 square metres with a paired-gable roof and a column-free teaching floor spanned by one long beam. Listed in 2024, and still in daily use.

An 1885 covered passage of 27 square metres joining the worship hall to the shrine office, with a roofed branch running north to the martial arts hall. Listed 2024.

An 1885 roofed passage of 27 square metres running from the worship hall to the amulet office, its raised corner floor doubling as a store. Listed in 2024.

Built in 1899 as the movement's main preaching hall, this 616 square metre building uses timber trusses to clear some 200 mats without a column. Listed 2024.

An 1885 sanctuary at the birthplace of Kurozumi-kyo in Okayama City. At 37 square metres it carries paired gables, carving and metal fittings. Listed in 2024.

An 1885 gate 2.2 metres wide with 62 metres of fence around the sanctuary, carrying a carved rabbit among waves and standing on tightly cut stone. Listed in 2024.

Built in 1910 as the officers' club of the army's 17th Division, this timber building carries Ionic columns and semicircular pediments. Registered in 2012.

A cut-stone gate from 1900, the year the Sixth Higher School opened, with a 1,032-meter wall around the Okayama campus. Both can be seen from the street.

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 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 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.

An 1887 police station in Ushimado, Setouchi, with a pediment, varied Western windows and faux-stone corners; now a museum of Korean embassies and festival floats.

An 1897 timber warehouse, 29 meters long, built to collect leaf tobacco under the state monopoly, now a free folk museum of 800-plus rural tools open on weekends.

The Former Akasaka Jinjō Kōtō Elementary School Building in Akaiwa City, Okayama, is a wooden two-story schoolhouse built in 1910 in the distinctive 'Egawa Style' associated with prefectural engineer Egawa Saburohachi. With its arched entrance, kikusui roof relief, and tasuki bracing motifs, it was registered as a National Tangible Cultural Property in 2018. Today the building has been reborn as the Children's Library Hotaru, offering a reading space wrapped in the gentle warmth of Meiji-era timber craftsmanship.

Standing at the foot of Shinbashi Bridge on the eastern bank of the Asahi River in Katsuyama, the Former Okanoya Ryokan Guest Room Building is a late Meiji wooden two-story inn registered as a Tangible Cultural Property. Its glass-paned façade jutting out over the stone embankment perfectly captures the romance of a Japanese riverside ryokan.