07/06/2026
🇯🇵 Beneath a modern Japanese city lies a 20,000-year-old forest 🌲
📍 The Site of Tomizawa & Underground Forest Museum, Sendai
Address: 4 Chome-3-1 Nagamachiminami, Taihaku Ward, Sendai, Miyagi 〒982-0012 宮城県仙台市太白区長町南４丁目３−1
Most people visit Sendai for Matsushima, beef tongue and historic sites.
Few realise that one of the city’s most fascinating attractions is hidden underground.
Built around the remains of a prehistoric forest, the Underground Forest Museum preserves traces of a landscape that existed during the last Ice Age, long before modern Japan took shape.
What makes this place special is that the archaeological site remains exactly where it was discovered.
Ancient tree roots and trunks lie preserved beneath the museum, offering a rare glimpse into a world that existed nearly 20,000 years ago.
The trees survived because they were buried and protected from oxygen, allowing them to remain remarkably intact for thousands of years.
✨ What you’ll find inside
🌲 The Tomizawa Archaeological Site
One of the world’s largest Ice Age forest sites, preserved beneath the city of Sendai.
Walking through the underground exhibition space feels surprisingly surreal when you realise you’re looking at actual remains from the prehistoric era.
🪨 Paleolithic discoveries
Stone tools, seeds and archaeological finds help tell the story of the people who once lived here.
Interactive displays and projections recreate the environment of Ice Age Japan and bring the ancient landscape to life.
🏛️ An underrated stop in Sendai
While many visitors head straight to the city’s famous landmarks, this museum offers something completely different and is easily one of the most unique museums in the Tohoku region.
🚇 Getting There
From Sendai Station:
Take the Subway Namboku Line to Nagamachi-Minami Station
Exit 3
🚶 5–10 minutes on foot
🎫 Admission:
Adults: ¥460
⏱ Recommended visit time:
45–60 minutes
🕘 Opening Hours:
9:00 AM – 4:45 PM
(Always check the official website before visiting.)
💡 DiTour Tips
✅A great rainy-day activity in Sendai
✅The underground exhibition area is intentionally dimly lit to protect the site
✅Easy to combine with Zuihoden Mausoleum or Sendai Castle Ruins afterwards
✅History lovers, archaeology enthusiasts and curious travellers will appreciate this more than expected
✅Allow time to read the exhibits — the stories behind the discoveries are just as interesting as the site itself
Most museums tell you about history. This one lets you stand directly above it
