You included that Mickey Mouse Tunnel in London but not the Seikan Tunnel connecting the islands of Honshu and Hokkeido? - The building of Seikan was one of the greatest engineering feats of all time.
When riding that tunnel by train you go 140 meters below the sea floor of the Pacific through solid granite.
Unitl the new Gotthard tunnel is finished Seikan will remain the longest tunnel in the world with a length of 54 km. The Channel tunnel just doesn't compare with a length of 50 km… Continue
Posted on May 29, 2009 at 11:35pm — 4 Comments