Alaska

• More than half of the coastline of the entire United States is in Alaska.

Amazon

• The Amazon rainforest produces more than 20 percent of the world's oxygen supply.
  
  
• The Amazon River pushes so much water into the Atlantic Ocean that, more than 100 miles at sea, off the mouth of the river, one can dip fresh water out of the ocean.
  
  
• The volume of water in the Amazon River is greater than the next eight largest rivers in the world combined and three times the flow of all rivers in the United States .

Antarctica

• Antarctica is the only land on our planet that is not owned by any country.
  
  
• Ninety percent of the world's ice covers Antarctica. This ice also represents 70 percent of all the fresh water in the world.
  
  
• As strange as it sounds, however, Antarctica is essentially a desert. The average yearly total precipitation is about two inches.
  
  
• Although covered with ice (all but 0.4 percent of it), Antarctica is the driest place on the planet, with an absolute humidity lower than the Gobi desert.