The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The state of Florida is bigger than England!
74
The Niagara Falls moves upstream at an average rate of about 295ft a century!
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