World China's BIGGEST UNDERWATER Tunnel Is FINALLY OPEN!

China is a country that is known for its mega structures. Looking at the nation's infrastructure, it is clear that it has constructed several enormous skyscrapers, dams, railways and more that have amazed the world.
In today's video, we're about to explore China's longest and most stunning underwater tunnel, which is also the nation's longest underwater tunnel. They call it the Taihu tunnel.