It's still possible to see the division between East and West Germany due to different light bulbs.
5
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
More than 25% of the world's forests are in Siberia.
51
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
The water of the Antarctica is so cold that nothing can rot there.
334
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The Sahara desert expands at about 1km per month.
90