The Selimiye Mosque, commissioned by Sultan Selim II, is constructed in Edirne by architect Sinan between the dates 1568-1574.

Surrounded by four tall minarets, the Mosque of Selim II has a grand dome atop it.

While conventional mosques are limited by a segmented interior, Sinan's effort at Edirne is a structure that makes it possible to see the mihrab from any location within the mosque.

The amalgamation of the main hall, created through eight pillars incised in a square shell of walls, forms a fused octagon with the dome-covered square.

behind the arches formed by eight massive dome supports, the octagon is pierced by four half dome covered corners of the square, intermediary sections between the huge encompassing dome (thirty-one and a quarter-meter diameter with spherical profile) and the walls.

The beauty resulting from the conformity of geometric shapes engulfed within each other is the culmination of Sinan's lifelong search for a unified interior space.