The water of the Antarctica is so cold that nothing can rot there.
334
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Caspian Sea is also classed as the world's largest lake.
52
The Sahara desert expands at about 1km per month.
90
One cubic mile of seawater contains about 50 pounds of gold.
79
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40