Australia's Great Barrier Reef is 1,250 miles long!
45
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
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Every year, Alaska has about 5,000 earthquakes.
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The Caspian Sea is also classed as the world's largest lake.
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Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
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It's still possible to see the division between East and West Germany due to different light bulbs.
5
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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