A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Israel's Dead Sea is 1,312 feet below sea level.
48
The state of Florida is bigger than England!
74
The Sahara desert expands at about 1km per month.
90
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