Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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The World Trade Center towers used to have two zip codes, 10047-10048, one for each building.
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In 1897, Bayer, who is the maker of Aspirin, marketed the drug heroin.
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Clocks made before 1660 had only one hand - an hour hand.
41
Pineapples were such a status symbol in 18th century England that you could rent one for the evening to take to a party.
25
A B-25 bomber airplane crashed into the 79th floor of the Empire State Building on July 28, 1945.
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