Despite these obstacles, they succeeded in finishing the building in 1919. To get over the tallest mountain, which is 17 km long, train workers constructed 20 overpasses and 17 tunnels totaling 800 meters in length.
Despite these obstacles, they succeeded in finishing the building in 1919. To get over the tallest mountain, which is 17 km long, train workers constructed 20 overpasses and 17 tunnels totaling 800 meters in length.
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