It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The water of the Antarctica is so cold that nothing can rot there.
334
The Sahara desert expands at about 1km per month.
90
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Australia's Great Barrier Reef is 1,250 miles long!
45
Mexico City is built on top of an underground resevoir!
47