The Gotthard Base Tunnel goes under the Alps and has been called the world's longest tunnel. After 17 years, it's finally ready to be opened.
Video - The incredible ceremony for the opening of the world's longest & deepest rail tunnel (in fast fwd) #Gotthardhttps://t.co/yk0971FHkl— 5News (@5_News) June 1, 2016
Video - The incredible ceremony for the opening of the world's longest & deepest rail tunnel (in fast fwd) #Gotthardhttps://t.co/yk0971FHkl