Important cultural property

Preserved in Okayama Prefecture, this Important Cultural Property is a katana forged in 1674 by the legendary swordsmith Nagasone Kotetsu — one of the two yokozuna of the new sword era. Bearing a refined late-period Hakotora signature, with a 76.3 cm cutting edge and the celebrated juzuba temper line, this masterpiece descends through the Okudaira daimyo family.

The Kinzanji Monjo, preserved at the ancient temple of Kinzanji in the mountains north of Okayama City, is a collection of 52 documents in 7 scrolls designated a National Important Cultural Property in 1969. Spanning more than 430 years from the late Heian to the early Edo period, the archive includes provincial governor confirmations, shogunate and Rokuhara Tandai orders, and land donation deeds. The attached Kinzan Kannon-in Engi records the lives of founder Hoon Daishi and Eisai, founder of Japanese Rinzai Zen, offering a vivid window onto how a regional temple navigated medieval Japan's shifting powers.

A National Important Cultural Property owned by Hokoji Temple in Ushimado, Setouchi City, Okayama. This rare early Muromachi triptych pairs Acala with the Thirty-Six Boys at center and the Diamond Realm and Womb Realm Mandalas to either side—a vivid encapsulation of Shingon esoteric devotion on silk.

Preserved at Chofuku-ji Temple in Mimasaka City, Okayama Prefecture, the Two-Realms Mandala on Silk is a pair of hanging scrolls painted during the Nanboku-cho period of the 14th century, designated an Important Cultural Property of Japan in 1901. Each scroll measures approximately 165 by 125 centimeters and represents a remarkable survival of medieval esoteric Buddhist art at a regional mountain temple, depicting the Diamond and Womb Realms of the Shingon cosmos with finely drawn iconography and rich mineral pigments.

The Sansai Jar reportedly excavated in Okayama Prefecture is a Japanese Important Cultural Property dating to the first half of the eighth century. Held by the Kurashiki Archaeological Museum in the Kurashiki Bikan Historical Quarter, it was reportedly discovered around 1904 in a lateral-chamber stone tomb near Tsuyama City, together with a ceramic coffin. Standing 21.3 centimeters tall with a maximum body diameter of 25.3 centimeters, the medicine-jar-shaped vessel is decorated with a luminous combination of green, amber, and clear lead glazes laid over a white slip ground — a luxurious technique known as Nara sansai, modeled after Chinese Tang sansai. Only a handful of comparable large Nara-period three-color jars are known to survive nationwide. That this courtly treasure was used as a cremation container in a provincial ancestral tomb makes it a remarkable witness to the human and cultural ties that linked the eighth-century capital with the regions of ancient Japan.

Discover the Wooden Senju Kannon and Two Attendant Statues of Mio-ji Temple in Niimi City, Okayama — a Kamakura-period three-figure ensemble of national importance, designated as far back as 1901. Explore the artistic value of the central Senju Kannon, the dynamic flanking figures of Fudo Myo-o and Bishamonten, the temple's Muromachi-era main hall, and nearby attractions in northern Okayama.

Built in 1687, Ie Udun Baka is the tomb of a Ryukyu royal branch family and a rare securely dated turtleback tomb, an Important Cultural Property since 1999.

Completed in 1925, the Old Ogimi Village Office is the oldest surviving reinforced concrete building in Okinawa. Featuring a distinctive octagonal and cruciform design engineered to withstand typhoons, this national Important Cultural Property offers a fascinating glimpse into Okinawa's architectural modernization.

The 1498 Former Enkaku-ji Hojo Bridge in Naha is the only surviving structure of a royal temple lost in war, its Chinese stone railings the kingdom's finest.

On a quiet lane in Ishigaki, the Former Miyara Dunchi housed a family that governed a Ryukyu district. It is the only samurai residence with national designation.

The Former Waukei Family Tomb on Ishigaki sets a 17th-century cave burial chamber within walled limestone courts, an early form in Okinawan tomb design.

Located within Shuri Castle Park in Naha, Okinawa, the Sonohyan Utaki Stone Gate was built in 1519 by order of King Shō Shin as a royal prayer site. This masterpiece of stone architecture fuses Japanese, Chinese, and Ryukyuan styles and is designated both a National Important Cultural Property and a UNESCO World Heritage Site.

Sesoko Toteikin on Sesoko Island in Motobu Town, Okinawa, is the largest worship facility dedicated to the Chinese earth deity Toteikin in the Ryukyu Islands. Believed to have been constructed in the mid-18th century, the compound features a main hall, worship hall, and courtyard enclosed by coral limestone walls, all remarkably well preserved within a sacred natural forest. Designated as a national Important Cultural Property in 1997, it stands as an invaluable testament to the cultural exchange between the Ryukyu Kingdom and China.

Discover Izena Tamaudun, a National Important Cultural Property on Izena Island, Okinawa. This royal mausoleum of the Second Shō Dynasty dates to 1688 and honors the family of King Shō En, founder of the Ryukyu Kingdom's last ruling dynasty.

Discover Chunnagā, a pair of beautifully crafted Ryukyuan stone springs in Ginowan City, Okinawa. Designated as a National Important Cultural Property, these 19th-century communal wells showcase exceptional stonework and reveal the spiritual water culture of the Ryukyu Islands.

Discover Tennyo Bridge (Tennyo-bashi), a 1502 stone arch bridge designated as an Important Cultural Property of Japan. Located beside Shuri Castle in Naha, Okinawa, this masterpiece blends Chinese, Japanese, and Ryukyuan craftsmanship.

Nakandakari Hijaa in Nanjo City, Okinawa, is a traditional stone-built communal spring representing the finest example of Ryukyuan water heritage. Reconstructed in Ryukyu limestone by Tsuken Island stonemasons in 1912, the facility features separate bathing areas for men and women and Okinawa's only Goemon bath at a communal spring. Designated as a nationally Important Cultural Property in 1995, this site offers visitors a rare glimpse into the island's centuries-old water culture.

The Iwate Bank (Former Morioka Bank) Old Head Office Main Building is a magnificent Meiji-era banking hall completed in 1911 in central Morioka. Designed by Tatsuno Kingo, the architect of Tokyo Station, together with Kasai Manji, it is the only surviving Tatsuno work in Japan's Tohoku region. In 1994 it became the first active bank building in Japan to be designated a National Important Cultural Property. Now open to the public as the Bank of Iwate Red Brick Building, it showcases a stunning interior crafted with around 910,000 Iwate-made bricks and Aomori hiba wood, and features the iconic red brick and white granite Tatsuno style facade.

Tucked beside the Mine no Yakushidō at Chūsonji Temple in Hiraizumi, the Ganjōjuin Hōtō is a delicate andesite stone pagoda just 125.7 cm tall. Its cylindrical body carries Sanskrit seed-syllables of the Four Buddhas of the Vajra Realm, embodying the refined late Heian-period stone craftsmanship of the Ōshū Fujiwara golden age. Designated an Important Cultural Property of Japan in 1957.

Standing in the heart of Morioka City, Iwate Prefecture, the Former Ninetieth Bank Head Office Main Building is a two-story brick bank building completed in 1910 (Meiji 43), designed by young Morioka-born architect Tsutomu Yokohama. With its dignified Romanesque Revival exterior and a strikingly modern interior influenced by the Vienna Secession movement, the building is recognized as an early forerunner of Taisho-era Expressionist architecture and was designated an Important Cultural Property of Japan in 2004. Today it is open free of charge as the Morioka Takuboku & Kenji Museum of Youth, where visitors can explore the youthful years of two of Japan's most beloved writers, Takuboku Ishikawa and Kenji Miyazawa.