Japan 's Musashi was once one of the two largest warships in the world . It is still a formidable ship, but it has been replaced by newer ships like the new Zumwalt class and the DDG 1000.
Japan 's Musashi was once one of the two largest warships in the world . A team led by Microsoft co-founder Paul Allen makes discovery of the ship . Maritime museum director says he 's `` 90 % sure '' the ship was the Musashi .