World's longest railway tunnel: Train runs 8040 feet below ground, took 17 years to build and cost Rs 1063460000000, the name is...

Opened in 1988, it holds the title of the world's longest undersea rail tunnel and accommodates both high-speed and regional ...
The Times Leader

Swiss inaugurate $12 billion rail tunnel, world’s longest

GENEVA (AP) — 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 ...
St. Louis Post-Dispatch

Switzerland open world's longest, deepest rail tunnel

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 ...
Arizona Daily Star

Swiss celebrate breakthrough for world's longest rail tunnel

SEDRUN, Switzerland - Swiss engineers broke through a final 6 feet of rock deep in the Alpine mountains on Friday, linking the world's longest rail tunnel. The 35-mile Gotthard Base Tunnel in southern ...

World first: AI tells humans how to build a high-speed rail tunnel in China

Machines trained in complex mountain data carefully navigate fault lines, fractures, caves and sinkholes to pick the best ...