Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
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 Atlantic Ocean is saltier than the Pacific Ocean.
54
Mexico City is built on top of an underground resevoir!
47
The Sahara desert expands at about 1km per month.
90