In 1850, only 8% of the people in California were women.
0
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
The average ice berg weighs 20,000,000 tons!
54
The Atlantic Ocean is saltier than the Pacific Ocean.
54
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
The water of the Antarctica is so cold that nothing can rot there.
334