35 Miles Through the Alps: How Engineers Achieved the Impossible

35 miles through the heart of the Alps. 17 years of construction. $12 billion spent. And a mountain that nearly crushed everything. Deep beneath the Swiss Alps, engineers faced enormous pressure, dangerous rock formations, and challenges that even giant tunnel boring machines couldn't overcome. How did they manage to build the world's longest railway tunnel beneath thousands of feet of solid rock? And why did they have to design tunnel walls that could actually bend under pressure? Discover the incredible story of the Gotthard Base Tunnel — one of the most ambitious engineering projects ever completed. Subscribe for more incredible stories about mega projects, giant machines, and extraordinary engineering achievements!