A private consortium wants to build a 33.5-mile-long rail tunnel through the Andes to connect Argentina and Chile, but this $9.6 billion megaproject still has to navigate a ...

A private group aims to revive a lost rail link with a massive 33.5-mile tunnel under the Andes. Can this bold plan reshape ...

Shetland backs plan to connect islands with £1.5bn undersea tunnels

Councillors have backed initial plans to connect some of Shetland's islands with undersea tunnels, which could be in place ...