Lyon white lai in the center of the square, once known as the royal square. As well as the central plaza, less commonly, it all is paved the clay from the ground, although this does not make it very beautiful, but it left a deep impression to the person. Square red. Red roof with Lyon, the old city building is very harmonious. Interestingly, the square was important stage Lyon textile worker unrest in the middle of the 19th century.