An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Forest fires move faster uphill than downhill.
52
Israel's Dead Sea is 1,312 feet below sea level.
48
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61