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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Forest fires move faster uphill than downhill.
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The city of Houston, Texas is built on a swamp and is slowly sinking!
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The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
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The Niagara Falls moves upstream at an average rate of about 295ft a century!
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An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
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A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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The state of Florida is bigger than England!
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