In the heart of Rouen’s old town, the Gros Horloge (Big Clock) is one of the city’s most recognizable landmarks. This magnificent astronomical clock is not only an architectural jewel but also a symbol of Rouen’s rich history and craftsmanship. Spanning the lively Rue du Gros-Horloge, it invites visitors to step back into the Renaissance era while exploring one of Normandy’s most picturesque streets.

History of the Gros Horloge
The Gros Horloge was constructed in the 16th century and quickly became the pride of Rouen. Housed in a Renaissance-style archway spanning the city’s busiest pedestrian street, it is more than just a timepiece:
- The clock indicates the hour, the day of the week, and the phase of the moon.
- Its richly decorated face is one of the oldest functioning clock mechanisms in Europe.
- For centuries, it helped regulate the rhythm of city life, from markets to religious festivals.
The Gros Horloge has undergone restorations over the years, ensuring that its golden details and intricate mechanism continue to impress visitors.

Why Visit Le Gros Horloge?
- Historic Marvel: Admire one of France’s oldest astronomical clocks.
- Perfect Photo Spot: The arch and surrounding street are among the most photographed places in Rouen.
- Astronomical Details: Its dials don’t just tell the time but also track the phases of the moon.
- Central Location: Situated on Rue du Gros-Horloge, you’ll be surrounded by cafés, shops, and historic buildings.

FAQs About the Gros Horloge
Can you go inside the Gros Horloge?
Yes, there’s a small museum inside where you can see the mechanism and enjoy panoramic views of Rouen.
Is the Gros Horloge still working?
Yes, the restored mechanism still operates, making it one of the oldest functioning clocks in Europe.
What makes the Gros Horloge unique?
Its astronomical dial shows not only the time but also the phases of the moon and weekly cycle.
Practical Information
Location: Rue du Gros-Horloge, 76000 Rouen, France
Best Time to Visit: Daytime for details, evening for its golden glow under lights.
Admission: Free to admire from outside. Some guided tours of Rouen may include closer access.
How to Get There: Located in the pedestrian center, just minutes from Rouen Cathedral.