Explore the entire Earth's surface from highest peaks to mysterious depths.
via LiveScience.com http://www.livescience.com/27551-our-amazing-planet-top-to-bottom-mountaintop-to-ocean-trench-infographic.html
via LiveScience.com http://www.livescience.com/27551-our-amazing-planet-top-to-bottom-mountaintop-to-ocean-trench-infographic.html
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