Every year, Alaska has about 5,000 earthquakes.
31
Australia's Great Barrier Reef is 1,250 miles long!
45
It's still possible to see the division between East and West Germany due to different light bulbs.
5
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Europe is the only continent without a desert.
62
The Atlantic Ocean is saltier than the Pacific Ocean.
54