Swiss Federal Railways trains will whisk up to 15,000 passengers per day through the tunnels at 155 miles per hour, cutting the ride from Zurich to Milan from four hours to three. But the real ...

When the railways ploughed into the centres of cities in the 19th century they left in their wake dark, sooty labyrinths of brick-encased tunnels ... of grandeur. In Milan, Dropcity is ...

SBB is greatly expanding connections between Zurich and Central Switzerland. The centerpiece will be the Zimmerberg Base Tunnel with a total length of almost 20 kilometers. A so-called project of ...

From mountains to undersea crossings, tunnels have long pushed the boundaries of engineering and human ambition. But when it comes to sheer length and complexity, one tunnel stands above the rest. As ...