A 3-headed Janus representing past, present and future, opens the doors to a new year, and the figure of Aquarius pours water from a jug, section of January and Aquarius from the Zodiac and the labours of the months stained glass window, 1217, in the ambulatory of Chartres Cathedral, Eure-et-Loir, France. This calendar window contains scenes showing the zodiacal symbol with its corresponding monthly activity. Chartres cathedral was built 1194-1250 and is a fine example of Gothic architecture. Most of its windows date from 1205-40 although a few earlier 12th century examples are also intact. It was declared a UNESCO World Heritage Site in 1979. Picture by Manuel Cohen