Australia's Great Barrier Reef is 1,250 miles long!
45
Even Antarctica has an area code. It's 672.
58
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
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
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
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41