Mimar Sinan, the imperial architect of the sixteenth century, designed more than 350 buildings across the Ottoman Empire, including the Süleymaniye Mosque and the Selimiye in Edirne — works that set the standard for Ottoman architecture for generations. When architect Hilmi Şenalp's new mosque was commissioned by the Turkish government, it was originally slated to bear a geographical name: the Anatolian Great Mosque. Prime Minister Recep Tayyip Erdoğan changed that. He wanted the mosque to carry Sinan's name, and at the inauguration he noted a gap that had long existed: the Anatolian side of Istanbul had never had a selatin mosque — a mosque of imperial scale, the kind historically commissioned by sultans. The new mosque was meant to fill that absence, and the name was meant to signal its ambition.

The numbers tell part of the story. The central dome rises 42 meters, and the minarets climb to 72 meters — visible from considerable distance across the Anatolian skyline. On any given Friday, the mosque can hold between ten and twelve thousand worshippers. Beneath the prayer halls, the complex descends into a substantial underground world: a library, classrooms, conference halls, retail spaces, a parking garage, and a VIP lounge. This is mosque architecture conceived not just as devotional space but as civic infrastructure, a destination that holds a congregation and a community simultaneously. Walking toward it from the surrounding Ataşehir streets, the scale becomes apparent gradually, the domes resolving from suggestion into solidity.

At the inauguration ceremony in 2012, Erdoğan distributed something to visiting dignitaries: miniature replicas of the mosque. The gesture was deliberate and historically freighted. Ottoman sultans had once done the same — presenting scale models of newly completed mosques as gifts to honored guests, a way of sharing the act of patronage, of drawing others into the moment of dedication. Whether the echo was consciously theatrical or simply felt right, the effect was the same: a modern leader placing his project in a long line of Ottoman imperial building, reaching back across centuries to a tradition that the mosque's very name invokes.

Ataşehir sits in the newer, more residential Istanbul — the city that expanded east across the Bosphorus as population grew and the old peninsula filled. It is a district of apartment towers and ring roads rather than Byzantine walls and domed bazaars. The Mimar Sinan Mosque does not look out of place; it gives the neighborhood something to orient around. Standing at its forecourt with the city spreading in all directions, it becomes easy to understand why the selatin designation mattered. A mosque of this ambition is not only a place of prayer. It is a claim — that the Asian shore belongs to the same grand tradition as the European one, that the Ottoman legacy is not confined to one side of a strait.