Every year, Alaska has about 5,000 earthquakes.
31
There are more than 50,000 earthquakes throughout the world every year!
47
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
It's still possible to see the division between East and West Germany due to different light bulbs.
5
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
More than 25% of the world's forests are in Siberia.
51