Cologne Central Mosque

Stand at the corner where two wide roads meet, and listen. Trams grind past on Venloer Strasse. Cars hum along the ring road. Then your eye lifts, past the traffic lights, to a pale grey dome of curved concrete, split by long ribbons of glass. Two slender minarets rise beside it like sharpened pencils. This is the Cologne Central Mosque, in the district of Ehrenfeld, one of the largest mosques in Germany.

Before we look at the building itself, look at the street around you. Ehrenfeld was once an industrial quarter, full of factories, workshops and rail yards. In the decades after the Second World War, Germany invited workers from abroad to fill its factories. Many came from Turkey. A large number settled here, in streets like these, close to the jobs. Their children and grandchildren still shop, eat and pray in this neighbourhood today.

For many years, Muslims in Germany prayed in what people called backyard mosques. These were converted shops, warehouses and offices, often hidden behind ordinary doors. They worked, but they were invisible. The community that built this mosque wanted something different. They wanted a place that stood openly on a main road, where anyone passing by could see it. That simple wish, to be visible, shaped everything that followed.

The mosque belongs to an organisation called DITIB, the Turkish-Islamic Union for Religious Affairs. It is one of the largest Muslim associations in Germany, with close ties to the religious authority of the Turkish state. Its national headquarters sits here, on this same site. So the building is not only a place of prayer. It is also an office, a meeting point, and a symbol for hundreds of mosque communities across the country.

The design came from the Cologne architect Paul Böhm. His family is well known in German church architecture. His father, Gottfried Böhm, won the Pritzker Prize, often described as the highest honour in architecture, and designed many striking Catholic churches in concrete. Here is the first surprise. Cologne's great mosque came from a family famous for building churches. Paul Böhm brought that same feeling for heavy, sculpted concrete to an entirely different faith.

Now look closely at the dome. It is not one smooth half-sphere, like a classic Ottoman dome. Instead, it is made of separate curved concrete shells. They lean against each other, and the gaps between them are filled with glass. From some angles, it looks like a bud about to open. From others, it looks like a globe cracked gently apart. The architect wanted the building to feel open, letting light in and letting people see inside.

The two minarets follow the same idea. They are tall and very thin, almost like needles. They do not carry the heavy balconies of older mosques in Istanbul. Their surfaces are plain and modern. Notice how they frame the dome without crowding it. And here is the second surprise. Despite their height, these minarets do not call out the prayer over the street. They stand as a sign, not a loudspeaker, which was part of the agreement with the city.

The path to this building was not quiet. When the plans became public in the mid-2000s, Cologne argued fiercely. Some residents welcomed the project as a sign that Muslims belonged here. Others worried about its size, or about the influence of the Turkish state. A small far-right group organised protests. The well-known writer Ralph Giordano spoke out against it. Yet the city council approved the plans, and construction began in 2009.

Building the mosque took far longer than anyone expected. Costs rose. Disputes broke out between DITIB and the architect over construction faults and the direction of the project. In the end, the two sides parted ways, and Paul Böhm left the project before it was finished. For years, the concrete dome stood half-complete above the road. Locals grew used to the sight of cranes and scaffolding at this busy corner.

The mosque finally opened in September 2018. The ceremony was led by the Turkish president, Recep Tayyip Erdoğan, during a state visit to Germany. Many local politicians stayed away, and there were demonstrations nearby. For some people, the opening confirmed their fears about foreign influence. For many local Muslims, it was simply the day their long-awaited house of prayer opened its doors. Both views are still part of the story of this building.

If you go inside, the mood changes at once. The noise of the road fades. Inside the prayer hall, the floor is covered in soft carpet, and you will take off your shoes before you enter. Light falls through the glass gaps in the dome and moves slowly across the walls. Look up to see Arabic calligraphy, the decorative art of handwriting, used here to write verses and the names of God.

The lower levels of the complex feel more like a small town square. There are spaces for shops, meeting rooms, offices and community activities. Families come for classes, for events and for Friday prayers, the most important weekly prayer in Islam. Guided tours are offered for visitors who want to understand the building and the faith practised here. Dress modestly, and women are usually asked to cover their hair in the prayer hall.

Before you leave, step back to the edge of the square once more. Turn slowly. Behind you, trams still run toward the city centre, where the twin towers of Cologne Cathedral rise over the Rhine. In front of you, two minarets stand over Ehrenfeld. Two faiths, two skylines, one city. Notice the people walking past, some heading inside, some not even looking up. Perhaps that ordinary, everyday scene is what the builders hoped for all along.