A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The Atlantic Ocean is saltier than the Pacific Ocean.
54