The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
There are approximately three chickens for every human on Earth.
13
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8