The most popular theory is that after WWII, when the Jewish community in the area grew as people fled Nazi persecution, blue was painted on the walls, floors and steps as a religious practise, to represent the colour of the sky and connect the city to heaven and God. #morocco #morocco🇲🇦 #leentravel #travel #travelling #travelmorocco #travelmorocconow #moroccotravel #chefchaouen