A Peek into World's Longest Tunnels

1. The Gotthard Base Tunnel

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2. The Channel Tunnel

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3. The Seikan Tunnel

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4. The Dahuofang Water Tunnel

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5. The Lærdal Tunnel

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6. The Guanjiao Tunnel

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7. The Atal Tunnel

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8. The Hsuehshan Tunnel

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10. The Karahnjukar Tunnel.

[{"selector":"#anim-f0143a8b-4379-46ad-96fb-5e60e282418d","keyframes":{"opacity":[0,1]},"delay":500,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f679c722-b749-4a82-bdf7-079d26259d10","keyframes":{"transform":["translate3d(-114.69741%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7211b068-4317-46ad-b9dd-4b10cfc2aa3e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6e5533dd-366e-45c5-a1c3-ced7004b85d4","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-7b464db8-1142-464d-afcc-19fc55026d36","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-72173e50-a5eb-4108-8475-ca4fc9df7509","keyframes":{"transform":["translate3d(106.36363%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3c545a69-c0d4-4b0f-a797-44e6abff9135","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-42b9921f-fca1-4c88-8c5f-e1ae36c250f0","keyframes":{"transform":["translate3d(0px, 136.73299%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b9f8edfc-54c8-4579-b306-b900497cff1b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(28.90624987200394%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Iceland's 39km Karahnjukar Hydropower Tunnel: channels water, showcases sustainable energy through volcanic rock.

10. The Päijänne Water Tunnel

[{"selector":"#anim-9f308cb8-326c-4807-aa8e-881f98bdc046","keyframes":{"opacity":[0,1]},"delay":500,"duration":1200,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-077ce9d4-c60e-4afe-84f5-d528e12433da","keyframes":{"transform":["translate3d(-114.69741%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a3732fd7-8cf5-45c2-8316-645ee2d35dbb","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-34cd6815-053e-4b14-8f2f-09babd28d346","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-afcbc8c2-0514-4b14-84f2-57ed9ed5a5a9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-27499677-0679-435f-a04e-5a957b3512b2","keyframes":{"transform":["translate3d(106.36363%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e0c717ad-2dad-4391-a367-e6b5b942231c","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-51b52ff7-d143-4061-ab23-008620db1b5f","keyframes":{"transform":["translate3d(0px, 136.73299%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] "Päijänne Water Tunnel: 120km-long, supplies Helsinki, showcases Finland's sustainable water management via drilling & tunneling."

[{"selector":"#anim-c45e87dd-11cb-4faa-8ad4-0f369995f87a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-49.375152757278116%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}] READ MORE