The Atlantic Ocean is saltier than the Pacific Ocean.
54
Check your map! Virginia extends farther west than West Virginia.
67
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Mexico City is built on top of an underground resevoir!
47
The water of the Antarctica is so cold that nothing can rot there.
334