Un trapano gigantesco ha fatto cadere l'ultima parete

Miners watch as the drill machine ‘Sissi’ breaks through the rock at the final section Faido-Sedrun, at the construction site of the NEAT Gotthard Base Tunnel, Switzerland on 15 October 2010. With a length of 57 km (35 miles) crossing the Alps, the world’s longest train tunnel should become operational at the end of 2017.
(Ansa/EPA/CHRISTIAN HARTMANN / POOL POOL)