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Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR
![Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR](https://media.npr.org/assets/img/2016/06/01/gettyimages-105475814_custom-293c8eedebb27759dbd26d764b46c07b23b87f9f.jpg)
Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR
![Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR](https://media.npr.org/assets/img/2016/06/01/gettyimages-536301520_custom-bee606c83243271e381297336615d94042481be7.jpg)
Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR
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