Construction Two giant machines, 14 meters long, move in opposite directions underwater — when they meet, China will have the largest underwater railway tunnel in the world… Douglas Avila 17/04/2026 at 18:04
Science and Technology China Begins Construction Of The World’s Largest High-Speed Underwater Train: Tunnel Will Have 123 Km Under The Sea, Connect Two Continents In 40 Minutes, Cost $36 Billion, And Face Seismic Zones With Cutting-Edge Engineering Alisson Ficher 26/11/2025 at 14:50
