The first female self-made millionaire in America was a black woman.
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In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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The most expensive license plate is the number '1', bought by an Abu Dhabi businessman - costing a staggering $14.3 million!
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In 2007, a customer kindly gave a $10,000 tip to a Pizza Hut waitress after hearing she had financial troubles which had forced her to drop out of college.
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