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
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The state with the longest coastline in the Continental U.S. is Michigan.
31
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
Mexico City is built on top of an underground resevoir!
47
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The average ice berg weighs 20,000,000 tons!
54