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  1. Diver Squeezes Through Underwater Tunnel

    Diver Squeezes Through Underwater Tunnel

    906
  2. Diver risks one-breath swim through deep underwater tunnel

    Diver risks one-breath swim through deep underwater tunnel

    81.6K
  4. Floating underwater tunnels: Norway earmarks $25bn for floating submerged tunnel plan - TomoNews

    Floating underwater tunnels: Norway earmarks $25bn for floating submerged tunnel plan - TomoNews

    49
  5. Hole in Rocks by the Sea Turns into Underwater Tunnel

    Hole in Rocks by the Sea Turns into Underwater Tunnel

    50
    13
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    3
  6. Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

    Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

    18
  7. How the world’s largest underwater tunnel is being built | BBC News

    How the world’s largest underwater tunnel is being built | BBC News

    11
  8. Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

    Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

    855
  9. 🐟 Secret Tunnel Adventure! 🏔️ #SecretTunnel #AquariumLife #FishJourney #aquarium #fish #reef #tang

    🐟 Secret Tunnel Adventure! 🏔️ #SecretTunnel #AquariumLife #FishJourney #aquarium #fish #reef #tang

    8
  10. Bangladesh set to open first under-river tunnel project built with Chinese funding and contractors

    Bangladesh set to open first under-river tunnel project built with Chinese funding and contractors

    27.7K
  11. Tunnel Fills With Smoke After Serious Accident

    Tunnel Fills With Smoke After Serious Accident

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    232
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  12. Palm Jumeirah Tunnel underwater

    Palm Jumeirah Tunnel underwater

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    27
  13. 🚇 "The Amazing Channel Tunnel: Engineering Beneath the Waves" 🌊

    🚇 "The Amazing Channel Tunnel: Engineering Beneath the Waves" 🌊

    1
  14. Hong Kong's $11BN Underwater Railway Explained

    Hong Kong's $11BN Underwater Railway Explained

    2
  16. A family of three walks hand in hand through an underwater tunnel at an aquarium

    A family of three walks hand in hand through an underwater tunnel at an aquarium

    4
  17. Underwater tunnel railways

    Underwater tunnel railways

    4
  18. Curious Cat Explores Underwater Tunnel Aquarium

    Curious Cat Explores Underwater Tunnel Aquarium

    10
  19. Underwater World in the Heart of Dubai! 🐠🌊

    Underwater World in the Heart of Dubai! 🐠🌊

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    1
  20. Germany_s _10 Billion Underwater Tunnel to Denmark

    Germany_s _10 Billion Underwater Tunnel to Denmark

    4
  21. New battery technology, Underwater High-Speed Rail Tunnel

    New battery technology, Underwater High-Speed Rail Tunnel

    3
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    77
  22. The Chinese bridge-tunnel set 10 world records

    The Chinese bridge-tunnel set 10 world records

    82
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