One cubic mile of seawater contains about 50 pounds of gold.
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The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Mexico City is built on top of an underground resevoir!
47
The Atlantic Ocean is saltier than the Pacific Ocean.
54
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
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The Caspian Sea is also classed as the world's largest lake.
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