Yavuz Selim Mosque

Listen for a moment. Up here, on the high ground above the Golden Horn, the city sounds different. The traffic of the old town drops away into a low hum. You might hear pigeons on the courtyard paving, a door creaking somewhere in the cloister, the soft slap of slippers on stone. The air carries a little salt from the water below. And in front of you rises a single grey dome, broad and calm, sitting on its square hall like a lid on a box.

This is the Yavuz Selim Mosque. It stands on what Istanbul calls its fifth hill, in the Fatih district, in a quarter where most visitors never wander. The streets around it are residential and conservative. Laundry hangs from balconies. Men sit outside tea houses. That quiet is part of the experience. Many people who know the city well say this is one of the most peaceful imperial mosques in Istanbul, and standing here, it is easy to see why.

The name tells you whose memory this place holds. Yavuz means stern, or resolute, and English writers often translate it as "the Grim". It was the nickname of Sultan Selim the First, who ruled the Ottoman Empire for only about eight years in the early sixteenth century. Those eight years changed the map. His armies defeated the Safavids of Persia and then the Mamluk sultanate, the power that ruled Egypt and Syria. Holy cities and great trade routes passed into Ottoman hands.

Selim died in 1520, before a monument in his name could rise. His son, Suleiman, the sultan later called the Magnificent, completed the mosque in his father's honour. Work finished in the early 1520s, in the first years of the new reign. So when you look at this building, you are looking at a son's tribute — a statement that the conquering father would be remembered on one of the most visible hills in the capital.

Here is the first thing many visitors miss. People often assume every great Istanbul mosque is the work of Mimar Sinan, the famous imperial architect. This one is almost certainly not. It came just before Sinan's long career at court, and historians still debate who designed it. That makes the mosque a kind of bridge. It shows the style Sinan inherited, before he began stacking half-domes and cascades of smaller domes around his central spaces.

Walk into the courtyard first. It is framed on all sides by a portico, a covered walkway of columns carrying small domes. In the centre sits the fountain for ritual washing, where worshippers clean their hands, face and feet before prayer. The stonework is plain and well cut. Look at how the domes of the portico repeat in a steady rhythm. The design asks you to slow down, to walk the edges, before you reach the main door.

Now step inside, and notice how simple the plan is. The prayer hall is essentially one square room under one great dome. There are no half-domes to spread the space outward, as you see at the Süleymaniye or the Blue Mosque. The effect is direct and strong. Light comes in through rows of windows. Your eye goes straight up. It is an older idea of a sacred space — one room, one dome, one gathering.

On either side of the hall, you will find lower wings with their own rooms. These are often described as hospices for travellers and dervishes, the members of Sufi religious orders. In the Ottoman world, an imperial mosque was rarely only a place of prayer. It was the heart of a complex that could include schools, kitchens, baths and lodgings. Much of that wider complex is gone today, but these side spaces still carry that idea of hospitality.

Before you leave, walk around to the garden behind the mosque. Here stands the tomb of Selim himself, an octagonal building of pale stone. The real surprise is beside its door. Panels of glazed tiles frame the entrance, in deep blues, greens and yellows. They are early Ottoman tilework, from a period before the famous bright red of later İznik tiles appeared. Look closely at the colours and the patterns. They come from a different moment in Ottoman taste.

The garden holds other graves, too. Small tombs nearby are associated with members of the dynasty, including children of Suleiman. A later sultan, Abdülmecid the First, who ruled in the mid nineteenth century, also has his tomb within this complex. Over three centuries apart, two very different sultans rest on the same hill. One expanded the empire by the sword. The other is remembered for reforms that tried to modernise it.

Here is a second surprise. Look out beside the mosque, and you will see a huge sunken rectangle below street level. This is a Roman-era open cistern, a reservoir built to store water for the city long before the Ottomans arrived. It is often linked with Aspar, a general of the fifth century. Today the old basin holds sports fields and green space. Children play football where water once stood, deep below the walls of an imperial mosque.

Now find the terrace on the northern side and look out. The Golden Horn, the long inlet of the Bosphorus, runs below you. The hills of Beyoğlu and the old shipyard districts rise on the far shore. This view is why the site was chosen. A dome on this hill could be seen from the water and from much of the city. Even now, it holds its place on the skyline when you look back from the other side.

This is a working mosque, so a few simple habits help. Remove your shoes before entering the prayer hall. Women should cover their hair, and everyone should cover their shoulders and knees. Avoid visiting during the five daily prayers, and especially on Friday at midday. Speak quietly. The worshippers here are mostly local residents, and the calm you are enjoying belongs first to them.

Before you go, stand once more in the courtyard. Look up at the single dome, and then down at the worn paving under your feet. Five centuries of footsteps have passed here — sultans, travellers, students, neighbours on their way to prayer. As you walk back down the hill, listen to the city grow louder again. And turn around once, near the bottom. The grey dome will still be there, watching over the water.