A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The Caspian Sea is also classed as the world's largest lake.
52
Even Antarctica has an area code. It's 672.
58
Mexico City is built on top of an underground resevoir!
47
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14