Asuka in southern Nara Prefecture was Japan’s political center before Nara — the seat of government from approximately 593 to 710 CE, during which Buddhism was formally adopted, the first law codes were written, and the title tenno (emperor) was established. Today the Asuka plain is an extraordinary open-air archaeology site: burial mounds, palace foundations, mysterious granite carvings, and Buddhist temples scattered across rice paddies and vegetable fields, most accessible by rental bicycle on a flat 10km circuit.
Burial Mounds (Kofun)
The Asuka area contains numerous imperial-era kofun (burial mounds). The Ishibutai Kofun is the most striking: a keyhole-shaped mound whose covering earth has eroded away, revealing the enormous granite burial chamber beneath — 31 granite blocks, the largest weighing 77 tonnes, assembled without mortar into a chamber 7.7m long and 4.8m high. The chamber is open and enterable; standing inside a 7th-century megalithic tomb with light entering through the gaps is a rare and slightly overwhelming experience. The mound is attributed to Soga no Umako (died 626), the minister who manipulated imperial succession.
Mysterious Stones
Asuka contains a concentration of mysterious granite carvings whose function remains disputed: the Masuda no Iwafune (Stone Ship of Masuda) — two enormous granite blocks with flat tops and hollowed basins, sitting on a hillside, purpose unknown; estimated 800 tonnes. The Kame-ishi (Turtle Stone) — a stone carved into the shape of a turtle, possibly used in divination. The Saruishi (Monkey Stone) and Niomon-ishi (Two-faced Stone) are similarly anomalous. They date to the Asuka period (6th–8th century) but their functions — astronomical instruments, water systems, religious objects, boundary markers — remain actively debated among archaeologists.
Asuka-dera & Asukadera Great Buddha
Asuka-dera (founded 588, Japan’s first Buddhist temple) is a small, quiet temple that retains an extraordinary object: the Asuka Daibutsu (Great Buddha of Asuka, 609 CE) — Japan’s oldest surviving large bronze Buddha, created by sculptor Tori Busshi. The face has been repaired multiple times following fires and earthquakes; the ears and part of the hair are original 7th-century bronze. To sit in a small country temple directly before a 1,400-year-old Buddha without barriers or crowds is an experience that larger, more famous temples cannot replicate.
- Rental bicycles are available at Asuka Station (¥1,000/day) — the flat terrain makes the 10km circuit easy in 3–4 hours with stops.
- Asuka is 30 minutes from Kashiharajingu-mae on the Kintetsu Yoshino Line; combine with Yoshino for a full day in ancient Yamato.
- Asuka-nabe (pot stew with local wild boar, mushrooms, and vegetables) and Asuka milk (from the local dairy tradition established by Tang Dynasty immigrants) are the regional specialties.