If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Mexico City is built on top of an underground resevoir!
47
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Every year, Alaska has about 5,000 earthquakes.
31
Australia's Great Barrier Reef is 1,250 miles long!
45