The 17-mile underwater tunnel used by high-speed trains will be as deep as 1,558 feet below sea level, according to the project planners.

While some engineers have suggested a bridge as a more feasible alternative, advancements in rail technology have tipped the ...

The Strait of Gibraltar tunnel project stands to link Spain and Morocco, allowing users to drive 300 metres below sea level at its lowest point for an estimated 12.8million people annually.

The first phase covered 35,000 years of restricted water flow between the Mediterranean and the Atlantic Ocean, via what is now the Strait of Gibraltar ... forming a land bridge between Africa ...

Since then, multiple options have been proposed, from a bridge to a railway tunnel ... Africa - found roughly 16 miles west of the Strait of Gibraltar. The tunnel’s proposed design includes ...