A government investigation has confirmed that tunnel construction for the shinkansen bullet train line extension to Sapporo ...
Work on the Seikan Tunnel was completed in 1988, providing citizens with a direct route between the popular main islands of Honshu and Hokkaido, as per The Travel.com. Major cities, including the ...
Seikan Tunnel stretches 53.9 km and stands as Japan's longest tunnel. It is located beneath the Tsugaru Strait and connects the islands of Honshu and Hokkaido ...