Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The average ice berg weighs 20,000,000 tons!
54
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
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 Sahara desert expands at about 1km per month.
90
Australia's Great Barrier Reef is 1,250 miles long!
45