If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
More than 25% of the world's forests are in Siberia.
51
The Sahara desert expands at about 1km per month.
90
Every year, Alaska has about 5,000 earthquakes.
31
There are more than 50,000 earthquakes throughout the world every year!
47
Mexico City is built on top of an underground resevoir!
47