If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
One cubic mile of seawater contains about 50 pounds of gold.
79
In 1850, only 8% of the people in California were women.
0
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
It's still possible to see the division between East and West Germany due to different light bulbs.
5