Forest fires move faster uphill than downhill.
52
The Caspian Sea is also classed as the world's largest lake.
52
The average ice berg weighs 20,000,000 tons!
54
There are approximately three chickens for every human on Earth.
13
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
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