Tonkararin – Tamana, Japan - Atlas Obscura

Tamana, Japan


A mysterious set of tunnels carved into a Japanese mountain. 

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Hidden in the countryside of northern Kyushu is a mysterious set of human-made tunnels. Some are so narrow only a child could crawl through them, while another is more than 13 feet (four meters) tall. Altogether, the tunnels run for nearly 1,460 feet (445 meters) on a mountain slope.

When the network is tunnel was built is unknown, and it’s also unclear who carved them and why. Uphill, at the end of the tunnel, is a shrine with beautiful wood carvings. Downhill are a few kofun (ancient burial mounds), which you can visit.

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