Europe is the only continent without a desert.
62
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Sahara desert expands at about 1km per month.
90
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Mexico City is built on top of an underground resevoir!
47
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1