Forest fires move faster uphill than downhill.
52
One cubic mile of seawater contains about 50 pounds of gold.
79
Europe is the only continent without a desert.
62
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
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Australia's Great Barrier Reef is 1,250 miles long!
45