The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Europe is the only continent without a desert.
62
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Israel's Dead Sea is 1,312 feet below sea level.
48
The Caspian Sea is also classed as the world's largest lake.
52
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49