Rue du Gros-Horloge
About
The Gros Horloge, or Great Clock, stands proudly in the heart of Rouen’s historic centre on Rue du Gros-Horloge. Dating back to the late 14th century, it is one of the oldest astronomical clocks in France and a symbol of the city’s rich medieval heritage. The clock’s monumental dial—measuring 2.5 metres in diameter—turns once every 24 hours and displays the phases of the moon, while a bronze sun with 24 rays crowns its Renaissance façade. Visitors are treated to the fascinating mechanism that still ticks above the square; a modern electric solenoid rings one of the two bells every quarter hour, adding a melodic soundtrack to the bustling cityscape. Below the clock, the intricate design of the base and the surrounding wrought‑iron details offer a close‑up view of the craftsmanship that has endured for five centuries. Located at the crossroads of the medieval and the contemporary, the Gros Horloge is a gateway to Rouen’s wider cultural tapestry. Proximity to the cathedral and the historic city walls makes it a natural stop on a guided walking tour of Rouen’s most iconic sights. Admission is free, making it a must‑visit for budget travellers and history enthusiasts alike. Plan a quick stop of about half an hour to fully appreciate the time‑keeping marvel, but feel free to linger and soak in the ambience of this storied landmark.
Highlights
- Astronomical Clock Mechanism
- Grand Renaissance Facade
- Historic Bell Sound
- Panoramic View of Rouen
Must-See Areas
Good to Know
Good for
Best time to visit
Spring and early autumn offer pleasant weather and fewer crowds, ensuring a relaxed experience while visiting the Gros Horloge.
At a glance
- Typical visit: about 30 minutes