In 1485, Leonardo Da Vinci designed a machine so ahead of its time, it defied gravity and logic. Behold, the Flying Machine!
With its wings made from the finest silk and a propeller powered by a team of highly trained fleas, this contraption took to the skies and left the art world in awe.
View the Designs and see the sketches that made history.
Or, if you're feeling daring, take a peek at Accidents that befell our hero.