Just across from the magnificent Medersa Bou Inania, on the bustling Talaāa Kebira street, stands a faƧade that has baffled historians and travelers for centuries. This is Dar al-Magana (The House of the Clock), home to the worldās most famous medieval water clock.
In a city where time often feels like it has stood still, this 14th-century marvel reminds us that Fez was once a global center of science and engineering.
Built in 1357 by the Marinid Sultan Abu Inan Faris, Dar al-Magana is more than just a wall; it is a “time machine” of the Middle Ages. While the clock has been silent for nearly 500 years, its architectural skeleton remains one of the most intriguing sights in the Medina.
āļø How did the Water Clock work?
Designed by the muwaqqit (timekeeper) Abu al-Hassan ibn Ali Ahmed el-Tlemsani, the clock used a sophisticated hydraulic and weight-powered system to mark the passage of the hours.
- The Hidden Cart: Behind the twelve windows, a small cart ran along a track, powered by a floating weight in a water reservoir that drained at a perfectly calibrated rate.
- The Hour Bell: As each hour passed, the cart triggered a mechanism: one of the twelve small doors would swing open, and a metal ball would dropāclang!āinto one of the thirteen brass bowls sitting on the wooden rafters below.
- Visual and Audio: This allowed the people of Fez to both hear the hour and see exactly how many hours had passed based on which window was open.
š® Why was it created?
The clock wasn’t just a display of wealth; it was a functional necessity for the Medersa Bou Inania and its mosque across the street.
- The Call to Prayer: In an era before wristwatches, the clock allowed the Muezzin to know the exact moment for the five daily calls to prayer with mathematical precision.
- A Symbol of Knowledge: It served as a monument to the Sultan’s patronage of the “Exact Sciences” (astronomy and mathematics), showing that Fez was a city where faith and science worked in perfect harmony.
š§ What can Tourists explore today?
At Dar al-Magana
While the internal mechanism is currently under a long-term restoration process, the faƧade is a masterpiece of Marinid craftsmanship.
- The 12 Windows: Look for the thirteen (historically twelve active) arched windows and the carved cedar rafters that once held the brass bowls.
- Intricate Stucco: Examine the carved plaster and “arabesque” motifs that decorate the window framesāa sign of the building’s royal importance.
In the Surrounding Area (Fez el-Bali)
Dar al-Magana is located at the epicenter of the most historic part of the city:
- Medersa Bou Inania: Step inside the school across the street to see the finest zellij (mosaic) and carved cedar wood in the world. It is one of the few active religious sites non-Muslims can enter.
- Bab Boujloud (The Blue Gate): Just a few minutes’ walk away, this iconic gate marks the entrance to the old Medina.
- The Talaāa Kebira: Walk this main artery to experience the sensory overload of the spice, textile, and artisan souks.


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