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  2. Japanese engineers' underwater tunnel project shocked billions of people. Unbelievable project!

    Japanese engineers' underwater tunnel project shocked billions of people. Unbelievable project!

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  3. Diver risks one-breath swim through deep underwater tunnel

    Diver risks one-breath swim through deep underwater tunnel

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  5. Curious Cat Explores Underwater Tunnel Aquarium

    Curious Cat Explores Underwater Tunnel Aquarium

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  6. Diver Squeezes Through Underwater Tunnel

    Diver Squeezes Through Underwater Tunnel

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

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

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  9. Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

    Mysterious underwater tunnels at Bloody Bay Wall, Cayman Islands

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  11. Hole in Rocks by the Sea Turns into Underwater Tunnel

    Hole in Rocks by the Sea Turns into Underwater Tunnel

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  12. Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

    Russian, Chinese Businessmen Considering Secret Underwater Tunnel Connecting to Crimea

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  14. 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
  15. Eerie Travels - Episode 9 – Eerie Ohio – Moonville Tunnel, Ridges, Mounds and The Crosswick Serpent

    Eerie Travels - Episode 9 – Eerie Ohio – Moonville Tunnel, Ridges, Mounds and The Crosswick Serpent

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  16. Palm Jumeirah Tunnel underwater

    Palm Jumeirah Tunnel underwater

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

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

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  18. Hong Kong's $11BN Underwater Railway Explained

    Hong Kong's $11BN Underwater Railway Explained

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  20. 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

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  21. Underwater tunnel railways

    Underwater tunnel railways

    4
  22. Tunnel Fills With Smoke After Serious Accident

    Tunnel Fills With Smoke After Serious Accident

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  23. Germany_s _10 Billion Underwater Tunnel to Denmark

    Germany_s _10 Billion Underwater Tunnel to Denmark

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  24. New battery technology, Underwater High-Speed Rail Tunnel

    New battery technology, Underwater High-Speed Rail Tunnel

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