Istanbul, Bosporus History

National Geographic has produced a fascination video that describes the amazing engineering feat of the crossing of the Bosporus with a train tunnel 160 feet deep.  In the course of building this tunnel, started in 2005 and supposed to be finished in 2010, a major archeological find was made that has delayed the completion of the project until 2013 or later.  The Marmaray Tunnel website is here where you will find most interesting facts about the construction of the tunnel.  BTW, the spelling of what most of us know of Marmara apparently has morphed into Marmaray in the case of this tunnel, at least on their site..  What makes this project especially interesting is the fact the tunnel is being built 12 miles from one of the world's most active faults, the North Anatolian Fault.  Some scientists believe the area is overdue for a major quake within the next few years.