The Most Insane Underwater Structures

From floating oil rigs, and massive undersea roads– to fully-submerged, luxury hotels, the idea of an underwater city has inspired a few amazing underwater structures around the world!


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0:19 The Taihu Tunnel
1:10 Atlantis Palm Dubai
2:00 The Channel Tunnel
2:49 The Ryfast Project
3:54 Seiken Tunnel, Japan
4:50 Perdido
5:39 Padma Bridge
6:47 Christ of the Abyss


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