old castle wall in China. photo taken in Yunnan, the birth place of Admiral Zheng He, who set sailed 600 years ago to Malaka( Malacca), Malaysia and to many other countries. UK Navy officer stated that Zheng He had navigated round the world, and his fleet had traveled for peace voayging thousand os miles. The the voyage in 1433 lasted 2 years...who can prove the route of the voyage ?