An idea since Napoleon's time, this $15 billion link runs underwater for 23 of its 31 miles
... train through the tunnel runs 31 miles in total  23 of those underwater  
and... [DOC] [TLE] Eurotunnel Group - Company Profile, Information, Business ... [PAR] The Eurotunnel Group includes Eurotunnel plc, which, through its Eurotunnel ...