There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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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.
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The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Europe is the only continent without a desert.
62
The state of Florida is bigger than England!
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It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8