If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
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
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Caspian Sea is also classed as the world's largest lake.
52