Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
In 1850, only 8% of the people in California were women.
0
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109