Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Australia's Great Barrier Reef is 1,250 miles long!
45
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40