The Niagara Falls moves upstream at an average rate of about 295ft a century!
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The Caspian Sea is also classed as the world's largest lake.
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The warmest temperature ever recorded on Antarctica was 3 degrees F.
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The state with the longest coastline in the Continental U.S. is Michigan.
31
The Sahara desert expands at about 1km per month.
90
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
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Australia's Great Barrier Reef is 1,250 miles long!
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The Amazon rainforest produces more than 20% the world's oxygen supply.
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