Until Friday, Japan's Seikan Tunnel was able to claim itself the world's longest underground rail tunnel. It is 33.5 miles long, with 14.5 miles of that underwater. It opened in March 1988.
Until Friday, Japan's Seikan Tunnel was able to claim itself the world's longest underground rail tunnel. It is 33.5 miles long, with 14.5 miles of that underwater. It opened in March 1988.
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