Piri Reis map is a world map created by Ottoman-Turkish cartographer Ahmed Muhiddin Piri in 1513. The map has garnered attention because it appears to show an ice-free Antarctic coastline. If that is the case, then someone discovered and mapped Antarctica centuries before its reported discovery in 1773.
Nope, this fellow says Charles Hapgood simply adjusted some things and claimed it was Antarctica! It was sad, too, Piri Reis beheaded at age 90, for with drawing his troops from battle to protect his treasures...thoroughly enjoyed this, SFA!