When it officially opens on Wednesday, the GBT will overtake Japan's 53.9-kilometre Seikan tunnel as the world's longest train tunnel and bump the 50.5-kilometre Channel Tunnel that links England ...

In Austria last month, 155 people died in a train carrying skiers up a tunnel in the resort of Kaprun. "Fire could happen here too. But unlike the Mont Blanc tunnel, there's much less traffic.

The idea of a tunnel beneath the Atlantic Ocean, connecting the United States and Europe, has captured imaginations for over ...