The Channel Tunnel is one of the biggest engineering projects in the UK, with over 13,000 workers taking more than five years to complete one of the seven wonders of the modern world.
Updated: May 07, 2014, 12:00 AM
The Channel Tunnel is one of the biggest engineering projects in the UK, with over 13,000 workers taking more than five years to complete one of the seven wonders of the modern world.