The Süleymaniye Camii (Süleymaniye Mosque) is an Ottoman imperial mosque located on the Third Hill of Istanbul. It is the second largest mosque in the city, and one of the best-known signts of Istanbul.
The Süleymaniye Camii was built on the order of Sultan Süleyman. Construction began in 1550 and the mosque was completed in 1558.
The Süleymaniye Camii was ravaged by a fire in 1660 and was restored by Sultan Mehmed IV. Part of the dome collapsed again during the earthquake of 1766. Subsequent repairs damaged what was left of the original decoration of the mosque's architect, Sinan (recent cleaning has shown that Sinan experimented first with blue, before turning red the dominant color of the dome). During World War I the courtyard was used as a weapons depot, and when some of the ammunition ignited, the mosque suffered another fire. Not until 1956 was it fully restored again.