The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Israel's Dead Sea is 1,312 feet below sea level.
48
Europe is the only continent without a desert.
62
Every year, Alaska has about 5,000 earthquakes.
31
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
The Atlantic Ocean is saltier than the Pacific Ocean.
54