A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The average ice berg weighs 20,000,000 tons!
54
Even Antarctica has an area code. It's 672.
58
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Every year, Alaska has about 5,000 earthquakes.
31
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The Sahara desert expands at about 1km per month.
90
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138