Steam engine house (mosque)

The mosque with its minaret on the Neustädter Havelbucht is actually a former steam engine house. It was built in 1841 by the architect Persius, commissioned by Frederick William IV, and modeled after a Moorish design. At the time of its construction, it was the tallest building in the area and was clearly visible from the terrace of Sanssouci Palace.

The steam engine hidden inside was built by August Borsig and, with an output of 81,4 horsepower, was the most powerful of its time. It pumped water from the Havel River up to the Ruinenberg hill. From there, the water features and the main fountain in front of Sanssouci Palace could be supplied.
The steam engine has been preserved. However, its function is now performed by electric pumps, which are also housed in the historic building.
Even though the fountains in Sanssouci Park are now supplied with water by modern electric pumps, visitors to the "Mosque" can still experience the technical marvel of yesteryear in operation – a fascinating sight for young and old.