How South Korea Built a $20 Billion Wall Across the Sea You’ve Never Heard Of

South Korea Seawall, How to Build Seawall, Sea Wall Construction Process South Korea just spent 20 billion dollars to physically delete a piece of the ocean. They built a 34-kilometer wall straight across the Yellow Sea. They trapped 400 square kilometers of open water. And then, they drained it. In today's video, we look at How South Korea Built a $20 Billion Wall Across the Sea You’ve Never Heard Of... Keep watching to see South Korea Seawall, How to Build Seawall, Sea Wall Construction Process #World’s Biggest Megaprojects #Massive Infrastructure Projects #South Korea Seawall