The city of Houston, Texas is built on a swamp and is slowly sinking!
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
There are approximately three chickens for every human on Earth.
13
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
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