The Amazon rainforest produces more than 20% the world's oxygen supply.
182
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
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
Every year, Alaska has about 5,000 earthquakes.
31
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40