No road tunnel in the world is longer than the Laerdal tunnel, but it can be more than long. The blue passages in the tunnel not only look good, but also serve an everyday practical purpose. Read here why there is the tunnel and its record is shaking now.
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No road tunnel in the world is longer than the Laerdal tunnel, but it can be more than long. The blue passages in the tunnel not only look good, but also serve an everyday practical purpose. Read here why there is the tunnel and its record is shaking now.