Earth's Last Frontier: The Last Unclaimed Land on Earth...

Marie Byrd Land and Bir Tawil Triangle are the only two land areas on Earth not claimed...  ...s the single largest unclaimed territory on Earth. Bir Tawil Triangle likely has no owner because of some administrativ...  ...fu. First of all, despite of its name, it's not a triangle...

http://www.neatorama.com/2010/02/05/earths-last-frontier-the-last-unclaimed-land-on-earth/