The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Check your map! Virginia extends farther west than West Virginia.
67
There are approximately three chickens for every human on Earth.
13
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
The city of Houston, Texas is built on a swamp and is slowly sinking!
89