It's still possible to see the division between East and West Germany due to different light bulbs.
5
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
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
The Amazon rainforest produces more than 20% the world's oxygen supply.
182