This drawing by Leonardo da Vinci is based on the ideal human male proportions described by the ancient Roman architect Vitruvius.

Although the earliest records of vampire-like creatures in folklores and mythologies date back to the Mesopotamian era, the cold and intelligent archetype of the blood-sucking monster wasn't developed until the emergence of vampire literature in the early 18th century.

This mythical spring that grants eternal youth to anyone who drinks from it was popularized in the 1500s after conquistador Juan Ponce de León was rumored to have sought it out.

How to play: roll your dice, assess the total value and report to the central committee for redistribution.

This 1993 ad campaign designed to promote milk consumption in the state of California went on to become one of the most successful cases of commodity branding to be ever launched in the United States.