It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Mexico City is built on top of an underground resevoir!
47
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
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Even Antarctica has an area code. It's 672.
58
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18