How the world's longest underwater tunnel was built - Alex Gendler

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

中国がわずか110日間で世界最大の海底トンネルを建設した方法

The Channel Tunnel: Building the World's Longest Undersea Link

How Underwater Tunnels Are Built?

How the Fehmarnbelt Tunnel is being built

China's Insane Construction Tech Creates the World's Longest Underwater Tunnel

How Europe's Building the World's Longest Underwater Tunnel!

Unbelievable! The sea is full of water, how is the undersea tunnel built?

HOW IT'S MADE: Underwater Tunnels

Inside the World's Longest Underwater Tunnel – Fehmarnbelt Tunnel

"China Built a Tunnel Underwater — Here’s Why It’s Amazing"

China Leaves American President Shocked, Builds The Longest Undersea Tunnel In The World

The NEW longest underwater tunnel!

How China Built the World’s Largest Underwater Tunnel in 110 Days?

How Germany and Denmark Are Building the World’s Longest Immersed Tunnel

Inside the $8.7BN Fehmarn Belt Tunnel: The World's Longest Underwater Connection

How Tunnel Boring Machines Get Out 🤨

🇯🇵 How Japan Built the World’s LONGEST Underwater Tunnel 😱

Who designed this underwater road? That's so talented!#viralshort #subscribe