The extreme 'record' of the world's longest train tunnel
At 56km long and taking 17 years to build, the train tunnel under the Alps connects the city of Erstfeld and Bodio of Switzerland, which was unveiled a few days ago as the world'sVideo: Japan runs passenger trains at a speed of 500km / h
The magnetic buffer train reaches a speed of up to 500km / h and has been tested for the first time by Japan.