n 1988, engineers took the first swing at a face of rock that would one day be carved into the opening of one of the longest rail tunnels in the world. The Channel Tunnel, also referred to as the Chunnel, is a 31.35-mile-long tunnel that runs from Folkestone in Kent, England, and ends in Pas-de-Calais, France. However, unlike many other rail tunnels, 24 miles of the
