Turkey plans to build a vast waterway to relieve congestion in Istanbul's Bosphorus Strait, Turkey's Prime Minister Tayyip Erdogan has announced.
"We are building the canal of the century, a project of such immense size that it can't be compared to Panama or Suez canals."
He said the canal would be some 28-31 miles in length, 492 feet wide at the surface, and have a depth of 82 feet.
The canal, to be built on the European side of Istanbul, will link the Black Sea with the Marmara Sea and will be large enough for supertankers to pass through.