Twelve square piers and the surrounding walls support twenty domes on pendentives. The domes are of equal span, but those between the north door and the mihrab are slightly higher. The interior offers long horizontal vistas. The massive piers between pools of light, give a sense of gravity and order. The central dome is flanked by pairs of smaller domes at both ends of a long interior.
Minute domes light the triangular spaces between large and small domes.
The central dome. In this mosque, the transition is made towards the higher, single domed mosque that was to dominate Ottoman architecture in the time of Sinan. Here in a scheme similar to that of Hagia Spohia, the space under a large, central dome is extended longitudially by half domes,while four smaller domes cover the aisles. View into the central space from a side aisle. This design sets the scene for Sinan's experiments.