Gotthard Base Tunnel set to open
Sunday, Dec. 11, 2016 is the opening of one of the world’s engineering marvels: the Gotthard Base Tunnel under the Swiss Alps, the world’s longest and deepest railway tunnel.
Sunday, Dec. 11, 2016 is the opening of one of the world’s engineering marvels: the Gotthard Base Tunnel under the Swiss Alps, the world’s longest and deepest railway tunnel.