Australia's Great Barrier Reef is 1,250 miles long!
45
Even Antarctica has an area code. It's 672.
58
More than 25% of the world's forests are in Siberia.
51
Every year, Alaska has about 5,000 earthquakes.
31
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Mexico City is built on top of an underground resevoir!
47
Forest fires move faster uphill than downhill.
52