Watch the Absolutely Insane Performance That Marked the Opening of the World's Longest Rail Tunnel – Foreign Policy
World's Longest and Deepest Rail Tunnel, Through Swiss Alps, Opens - The New York Times
تويتر \ Dark Horse News على تويتر: "Bizarre Opening Ceremony For Gotthard Base Tunnel In Switzerland PART 2 https://t.co/DTaN7OjxbX https://t.co/YQORxfFFnx"
Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR
Switzerland tunnel: The oddest moments of the opening ceremony - BBC News
Opening Of Longest Railway Tunnel Was Bizarre But The Pics Are Incredible