The state with the longest coastline in the Continental U.S. is Michigan.
31
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
The Sahara desert expands at about 1km per month.
90
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181