The city of Houston, Texas is built on a swamp and is slowly sinking!
89
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63