Group Offers Steam Engine Building (Mosque)

The Steam Engine Building on the Neustädter Havelbucht is at once the most charming and one of the most unusual buildings in Potsdam. Frederick William IV, the “Romantic on the throne,” had Ludwig Persius construct it “in the style of Turkish mosques with a minaret as a smokestack” from 1841–43.

The building, which at that time could still be seen from Sanssouci Palace, set a picturesque and architectural accent in Potsdam’s cultural landscape.The steam-driven engine in the “Mosque” (capable of 81.4 hp) went into operation for the first time in October 1842, letting a jet of water in the Great Fountain in front of Sanssouci Palace soar to an impressive height of 38 meters. August Borsig, who was still a young entrepreneur, had built for Prussia the most powerful machine of its time, allowing King Frederick William IV to compete with the technical supremacy of England.

Although water supply to the fountains in Sanssouci Park is now carried out by modern electric pumps, the “Mosque” allows visitors to marvel at technical ingenuity of the past that is still in use – a fascination shared by young and old alike.

We offer the following group tour:

  • Steam Engine Building (Mosque)
    Highlights of the guided tour: Pump station in the Moorish style, steam engine (1842), wooden water pipe system in Frederick the Great's era


Steam Engine Building (Mosque)
Breite Straße 28
14467 Potsdam

How to get there

Public Transportation

Stop "Potsdam, Feuerbachstr."

vbb-online | Timetable information »

Opening Hours for Groups

The tour is on request and subject to opening hours and availability.


Unfortunately, the exhibition rooms are not accessible for wheelchair users.

For conservation reasons, it is unfortunately not possible to use prams / baby strollers in the exhibition rooms.

Guided Tours and Prices (Adults)

Group tour: Steam Engine Building (Mosque)
Availability: only on request, reservation required, bookable every first Sunday of the month from May to October without special opening charge
Duration: 30 minutes
Flat rate for groups:

75 € plus a special opening charge

Group size: maximal 20

Guided Tours and Prices (School groups/students)

Group tour: Steam Engine Building
Availability: only on request, reservation required
Duration: 30 minutes
Flat rate for groups: 52 €
Group size: maximum 20

Booking Policies

We offer a flat rate for groups limited to a maximum number of participants. The group rate always includes fees for group admission to the individual palaces, as well as a personal tour guide or audio guides.

If the number of participants exceeds the maximum size allowed, the group will be divided. Each group is allotted an admission time. The group flat rate is calculated per tour group. At some palaces, we offer a surplus fee up to a specific number of participants for the second guided tour. The surplus fee flat rate cannot be booked as an individual service.

There is no minimum number of participants required for a group tour.

Guided tours can be booked in a variety of languages. The bookings of a respective language are carried out subject to availability of tour guides and cannot be guaranteed.

We offer a 10 % discount from the group price for the groups accompanied by a guide licensed by the SPSG. The discount does not apply to group bookings / group tours with audio guide.

Special arrangements for groups outside the scheduled opening hours are possible on request. In addition to the group fee for a guided tour, extra charges apply for a special opening.

All information provided is subject to availability of offers and changes. Prices for groups are only valid in connection with the Stiftung Preußische Schlösser und Gärten Berlin-Brandenburg's (SPSG's) General Terms and Conditions for groups.

All prices quoted are exempt from VAT/sales tax according to German law (§ 4 Nr. 20a UstG).


Important note for school and youth groups:

The reduced flat rate for groups/school classes is valid for school groups (aged 27 or younger), including vocational schools and universities. When booking a reservation, the purchaser is obliged to indicate in writing that the group in question is a school or youth group. Furthermore, the purchaser must state in writing that the age restriction is adhered to, as noted above. School and youth groups, including the teacher and other accompanying persons, must also abide by the maximum number of participants allowed on each tour. If the group number exceeds the limit, the class will be divided into two groups.

General Terms and Conditions for Group Tourism

The General Terms and Conditions for Group Tourism of the Stiftung Preußische Schlösser und Gärten Berlin-Brandenburg apply.

Read GTC Group Tourism

Download GTC Group Tourism (PDF, 57 kb)

Plan your visit

Hop-on and hop-off the bus is possible close by the Steam Engine Building, parking spaces for cars and coaches at the parking lot "Am Bassin", but limited and subject to charge, at the Steam Engine Building cash desk for groups, wardrobes and lockers for groups not available

Luggage storage

Please note: No luggage or baggage may be left in the entrance area of the palace for security and safety reasons.
Unfortunately, there are no facilities for storing larger pieces of luggage or similar baggage on the premises of this historical site. We appreciate your understanding.