The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Forest fires move faster uphill than downhill.
52
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Mexico City is built on top of an underground resevoir!
47
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86