Israel's Dead Sea is 1,312 feet below sea level.
48
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The water of the Antarctica is so cold that nothing can rot there.
334
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243