More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Israel's Dead Sea is 1,312 feet below sea level.
48
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
The water of the Antarctica is so cold that nothing can rot there.
334
Check your map! Virginia extends farther west than West Virginia.
67