Nov 13, 2026Discover the world's deepest undersea road tunnel, the Eiksund Tunnel in Norway, plunging 287 meters below sea level and connecting islands to the mainland.

Nov 13, 2026Discover the Hallandsås Tunnel in Sweden, a vital underwater rail tunnel enhancing transport between Gothenburg and Malmö with advanced engineering.

Nov 2, 2026Discover the Chesapeake Bay Bridge-Tunnel, a unique underwater tunnel in Virginia that connects Southeastern Virginia to the Delmarva Peninsula.

Oct 30, 2026Discover the tunnels beneath the Ohio River, including maintenance tunnels and the Big Four Bridge pedestrian path connecting Louisville and Indiana.

Oct 29, 2026Explore the engineering challenges and feasibility of building a tunnel across the Atlantic Ocean, and why it remains science fiction for now.

Sep 4, 2026Discover Japan’s Seikan Tunnel, the world’s longest underwater tunnel connecting Honshu and Hokkaido beneath the Tsugaru Strait.

Jun 16, 2026Explore Virginia's Chesapeake Bay Bridge-Tunnel, a remarkable underwater tunnel connecting Virginia Beach and the Eastern Shore.

Mar 11, 2026Discover the truth behind rumors of Dubai's underwater train project to India and learn how to verify such claims.