Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
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.
1
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59