Forest fires move faster uphill than downhill.
52
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Even Antarctica has an area code. It's 672.
58
The Sahara desert expands at about 1km per month.
90
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The average ice berg weighs 20,000,000 tons!
54