Updated On: 01 June, 2016 02:23 PM IST | | IANS
<p>The world's longest and deepest rail tunnel is to be officially opened in Switzerland, after almost two decades of construction work, a media report said on Wednesday</p>
Bern: The world's longest and deepest rail tunnel is to be officially opened in Switzerland, after almost two decades of construction work, a media report said on Wednesday.
The 57 km twin-bore Gotthard base tunnel will provide a high-speed rail link under the Swiss Alps between northern and southern Europe, BBC reported.