Akiyoshidai
Discover Akiyoshidai, Japan's largest karst plateau and Special Natural Monument in Yamaguchi Prefecture. Explore limestone formations, Akiyoshido Cave, hiking trails, and seasonal beauty spanning 350 million years of geological history.
Akiyoshido Cave
Discover Akiyoshido Cave, Japan's largest limestone cave and a designated Special Natural Monument. Explore stunning stalactites, the famous Hyakumai-zara terraces, and the Golden Pillar deep beneath the Akiyoshidai Karst Plateau in Mine, Yamaguchi Prefecture.
Ayaragigo Ruins
The Ayaragigo Site in Shimonoseki, Yamaguchi Prefecture, is one of western Japan's largest Yayoi period settlements, designated as a National Historic Site. With over 1,000 storage pits, a ring moat, and remarkable artifacts including clay flutes and magatama beads from the Korean Peninsula, this ancient village reveals a vibrant hub of continental cultural exchange. Explore the reconstructed dwellings, ancient burial mounds, and the free-admission Shimonoseki City Archaeological Museum.
Ito Hirobumi's Former Residence
The Former Residence of Ito Hirobumi in Hagi, Yamaguchi Prefecture, is a National Historic Site where Japan's first Prime Minister lived from age 14 to 28. Discover the humble thatched-roof home from which he walked to the nearby Shoka Sonjuku academy and rose to shape modern Japan. The adjacent villa, relocated from Tokyo, showcases exquisite Meiji-era craftsmanship.
Kagekiyo Cave
Kagekiyo Cave (Kagekiyo-ana), a designated Natural Monument of Japan since 1922 and part of a Ramsar Convention Wetland, lies beneath the northeastern edge of Akiyoshidai Plateau in Mine City, Yamaguchi Prefecture. This 1.5-kilometer limestone cavern is steeped in the legend of a Heike warrior who hid here after the Battle of Dan-no-ura, and its walls contain countless 300-million-year-old marine fossils. With a barrier-free sightseeing course and a thrilling pitch-dark exploration course, it offers adventure and ancient history in one unforgettable experience.
Nimayama Tomb
Explore Jinbayama Kofun, a nationally designated historic site in Shimonoseki, Yamaguchi Prefecture. This 75-meter keyhole-shaped burial mound from the late 4th century is one of western Yamaguchi's largest and best-preserved ancient tombs.
Magnetic Stone of Susa Takayama
The gabbro boulders atop Mount Koyama in Hagi City, Yamaguchi Prefecture, possess extraordinarily powerful natural magnetism — strong enough to deflect and reverse compass needles — earning their designation as a National Natural Monument in 1936. Steeped in the legend of the deity Susanoo, this rare geological wonder invites visitors to witness invisible forces made tangible, and pairs perfectly with nearby Susa Hornfels and Susa Bay geo-cruises within the certified Hagi Geopark.
Remains of the Choshu Domain Shimonoseki Maeda Battery
The Choshu Domain Shimonoseki Maeda Battery Ruins in Shimonoseki, Yamaguchi Prefecture, is a nationally designated historic site where the Shimonoseki Campaigns of 1863–1864 unfolded. This coastal artillery battery witnessed fierce battles between the Choshu Domain and a four-nation allied fleet, leading to Japan's dramatic shift from isolationism to modernization. Visitors can explore the remains while enjoying panoramic views of the Kanmon Straits.
Nagato Coin Mint Site
Located in the historic castle town of Chofu in Shimonoseki, Yamaguchi Prefecture, the Nagato Mint Ruins are the only archaeologically confirmed site where Japan's first widely circulated copper coin, the Wadokaichin (708 CE), was produced. Designated a National Historic Site, the ruins lie within the serene grounds of Kakuon-ji Temple, celebrated for its stunning autumn foliage.
Hagi Expressway
The Hagi Ōkan is a 53-kilometer National Historic Site highway in Yamaguchi Prefecture, connecting the castle town of Hagi on the Sea of Japan coast to the port of Mitajiri on the Seto Inland Sea. Built in 1604 as the Mōri clan's official alternate attendance route, this ancient road preserves original Edo-period stone pavements, post towns, and milestone markers, and was once traveled by revolutionary samurai who helped create modern Japan.
Chinese Pears from Ashitanosho
Asada Tombs
Izumo Shrine Tsurumanryo Natural Grove
Ishijoyama Kamagoishi
Iwaya Kannon Cave
Ebisugahana Shipyard Site
Aomi Island
Qingmi Island Whale Tomb
Oitayama Tatara Ironworks Site