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  Switzerland Gotthard: World’s longest $12 billion rail tunnel inaugurated

  World | Jun 01, 2016, 05:34 PM IST

  Geneva: Just like Hannibal in ancient times, Swiss engineers have conquered the Alps. More than 2,200 years after the commander from the ancient North African civilization of Carthage led his army of elephants and troops

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  Kashmir rail tunnel: A marvel of human endeavour and engineering

  India | Jun 26, 2013, 08:00 PM IST

  Banihal, June 26: A 11-km railway tunnel across the Pir Panjal mountain range, inaugurated by Prime Minister Manmohan Singh Wednesday, is not only the longest such in India but an engineering marvel and a "dream