Mongol warship found near Japanese island

Twice in seven years, 1274 and 1281, the Mongol Emperor Kublai Khan tried to invade Japan. On one of those missions a ship sank in a typhoon off the island of Takashima. Now arhaeologists hope to learn the secrets of the Mongol warship from the recently-discovered wreck.

Another such Mongolian ship was found in 2011, but this one is in better condition with 11 meter long planks and stone ballast, and experts hope to find the keel of the ship beneath it.