The state with the longest coastline in the Continental U.S. is Michigan.
31
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
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
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
More than 25% of the world's forests are in Siberia.
51