Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
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Contrary to popular belief, the first ironclad warships were built by Korea in the 16th century.
14
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.
13
In 1958, a nuclear bomb was lost somewhere along the swampy coast of Georgia. Its whereabouts remain a mystery to this day.
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The oldest patented company logo is the red triangle of Bass beers!
34
Recently, archaeologists excavating in the old medieval town of Odense in Denmark uncovered 700-year-old barrels of poop - and, to their surprise, they still smelt.
11
Ancient Romans at one time used human urine as an ingredient in their toothpaste.
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Although Nostradamus died in the middle of 1566, his 1567 almanac was published because he had the foresight to prepare it before his death.
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