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
The water of the Antarctica is so cold that nothing can rot there.
334
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Israel's Dead Sea is 1,312 feet below sea level.
48
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
One cubic mile of seawater contains about 50 pounds of gold.
79
There are more than 50,000 earthquakes throughout the world every year!
47