Switzerland just did a very impressive thing, in completing the world's longest and deepest rail tunnel through the heart of the Alps, "conquering the Alps," in the words of the country's federal transport office director Peter Fueglistaler. Even more impressively, considering that the project took 17 years, they did it in the amount of time and for the amount of money they said they would back in 1999. We're honestly not sure what's more impressive: that, or the fact that it took over the title of world's longest from Japan's Seikan Tunnel, completed in 1988.
Switzerland Completes World's Longest Rail Tunnel on Schedule and on Budget
That might make it doubly impressive