In a matter of days, the Channel Tunnel will hit an important milestone. On May 6 it will be 30 years since the underwater tunnel began transporting freight and passengers across the English ...

The Channel Tunnel is an undersea railway tunnel which connects the UK and France via Kent and Calais, beneath the English Channel. Having opened in 1994, it has the longest underwater section of ...

A proposed tunnel underneath the Persian Gulf could become the world’s longest, at five times the size of the Channel Tunnel ... If completed, the underwater tunnel would be 190 kilometres ...