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Switzerland tunnel: The oddest moments of the opening ceremony - BBC News
Video: World's longest tunnel opens in Switzerland
World's longest tunnel opens under Swiss Alps | CNN
Gotthard Tunnel: dancing haystacks not whirling dervishes - SWI swissinfo.ch
Gotthard Base Tunnel, World's Longest, Deepest Tunnel, Is Officially Open In Switzerland : The Two-Way : NPR
Gotthard tunnel, world's longest, opens in Switzerland | CNN
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 Opening Ceremony | Railway-News
Opening Ceremony of Worlds Longest Tunnel (Gotthard/Switzerland) - YouTube