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
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The water of the Antarctica is so cold that nothing can rot there.
334
In 1850, only 8% of the people in California were women.
0
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
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The city of Houston, Texas is built on a swamp and is slowly sinking!
89