The Gros Horloge
The Gros Horloge is an astronomical clock installed in a Renaissance arch crossing the Rue du Gros-Horloge in Rouen, France. The mechanism is one of the oldest in France, made in 1389 .A facade was added in 1529 when the clock was moved to its current position. The Renaissance facade represents a golden sun with 24 rays on a starry blue background. The dial measures 2.5 metres in diameter. The phases of the moon are shown in the oculus of the upper part of the dial. It completes a full rotation in 29 days.