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	How Europe's Building the World's Longest Underwater Tunnel! (Aaron Witt) View
	How the world longest underwater tunnel was built (The Perspective) View
	How the world's longest underwater tunnel was built - Alex Gendler (TED-Ed) View
	Inside the $8.7BN Fehmarn Belt Tunnel: The World's Longest Underwater Connection (The Impossible Build) View
	China Leaves American President Shocked, Builds The Longest Undersea Tunnel In The World (Machine Eye) View
	Inside Norway's $47 Billion Floating Highway (TheRichest) View
	The Channel Tunnel: Building the World's Longest Undersea Link (The B1M) View
	Unbelievable! The sea is full of water, how is the undersea tunnel built (Machine Eye) View
	The 24KM Mega Bridge with an Underwater Tunnel– A Game Changer! 🌉🌊#ZhongshanBridge #ChinaMegaProject (Mega Structures) View
	Undersea Rail Tunnel Between Japanese Islands: Seikan Tunnel Explained (Railways Explained) View