The world's highest highway tunnel has opened for traffic in Tibet. The Mila Mountain Tunnel sits at an altitude of 4750 metres (15584 ft). The whole tunnel is 5.7 ...
http://bit.ly/2V9ajaE
The world's highest highway tunnel has opened for traffic in Tibet. The Mila Mountain Tunnel sits at an altitude of 4750 metres (15584 ft). The whole tunnel is 5.7 ...
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