Taishō

Built in 1913 as a Bank of Japan deputy governor's villa and moved twice to Mt. Akagi, this refined house pairs tatami rooms with a Western parlour. Registered in 2025.

Discover the Kanezen Building (Kanezen Biru) in Kiryu, Gunma Prefecture — one of the oldest reinforced concrete structures in the prefecture, built around 1921 with Secessionist-style ornamentation. A nationally registered tangible cultural property that reflects Kiryu's golden age as Japan's silk textile capital.

Standing in the heart of Maebashi's central district, the Former Otake Sake Brewery Brick Warehouse is a two-story brick structure built in 1923 during the Taisho era. Registered as a national Tangible Cultural Property in 2016, it is the only remaining sake brewery building in downtown Maebashi. The building uniquely blends Western brick masonry with traditional Japanese timber-frame roof construction. Now operating as the Maebashi Arts and Culture Brick Warehouse, it serves as a vibrant multipurpose event hall where history and the arts coexist.

The largest of the four sheds at 52 ken long, this early-Taisho timber hall forms the compound's western wall, mixing Western trusses with Japanese roof framing.

A 1920 wooden pastor's residence at Annaka Church in Gunma, whose 8- and 10-mat tatami rooms are said to be from a former Annaka domain retainer's mansion.

Discover Kitagama Substation in Tomioka, Gunma — a 1919 German-style reinforced concrete substation registered as a National Tangible Cultural Property. Learn about its role in electrifying the Tomioka Silk Mill region and its stunning architectural features.

The Watarase Keikoku Railway Edogawa Bridge in Kurohone-cho, Kiryu City, Gunma Prefecture, is a railway heritage structure originally built to transport copper ore from the Ashio Mine. Manufactured in 1911 by Osaka's Kisha Seizo using steel from Britain's Dorman Long & Co., this bridge was designated a Registered Tangible Cultural Property of Japan in 2009. Ride the scenic trolley train through the Watarase Valley and experience a remarkable piece of Meiji-Taisho era engineering that connects Japanese and British industrial history.

Discover the Watarase Keikoku Railway Okurokawa Bridge, a registered tangible cultural property in Gunma Prefecture. This Taisho-era three-span steel plate girder bridge crosses the confluence of the Okurokawa and Watarase Rivers, offering a unique window into Japan's industrial railway heritage.

Discover Kami-Kambai Station in Midori City, Gunma Prefecture — a wooden station building from 1912, registered as a national tangible cultural property. Explore its original wooden ticket gate, gravel platform, and Taisho-era charm along the scenic Watarase Valley.

Discover the Watarase Keikoku Railway Godo Station Hazardous Materials Storehouse, a Registered Tangible Cultural Property in Midori City, Gunma Prefecture. This Taisho-era stone structure preserves the legacy of Japan's industrial railway heritage along the scenic Watarase Valley.

Discover the historic upbound platform at Godo Station on the Watarase Keikoku Railway in Midori, Gunma. Built in 1912 for the Ashio Railway, this Registered Tangible Cultural Property features original stone retaining walls and gentle curves that tell the story of Japan's copper mining heritage.

Discover Godo Station on the Watarase Keikoku Railway, a registered tangible cultural property dating from 1912. Explore its wooden station building, stone platform, peach blossoms, and the Train Restaurant Seiryu in Gunma Prefecture.

The Konakagawa Bridge on the Watarase Keikoku Railway in Midori City, Gunma Prefecture, is a registered tangible cultural property built in 1912 to serve the Ashio Copper Mine. Featuring plate girders made with Dorman Long steel from England and elegant granite masonry piers, this century-old bridge still carries trains daily through one of Japan's most scenic mountain gorges.

Over the Kawaguchi River in Kiryu, Gunma, this 20-meter single-track deck plate girder of 1912 keeps its original form, with J-shaped stiffeners and no later bracing.

A straight 82-meter brick tunnel of 1912 in Kiryu, Gunma, its horseshoe cross-section closely following Japan's first standardized railway tunnel pattern.

The down-line platform at Sori Station in Midori, Gunma: a 99-meter stone platform of 1912 with a 1927 wooden shelter, open with glass doors and exposed roof framing.

The up-line platform at Sori Station in Midori, Gunma: a 79-meter stone platform of 1912 with ramped ends and a small 1929 gabled wooden shelter.

In Omama, Midori, Gunma, this 166-meter brick tunnel of 1912, refitted in 1974, is the longest on the line, its arch brick and its lower walls mixing brick and cut stone.

On a slope above Gunma's Watarase River, this curved 98-meter single-track tunnel was bored in 1912 for the Ashio copper-ore railway, with a rockfall shelter added later.