Dolmabahce Mosque, designed by Garabet Balyan, was initiated in 1853 by Bezmialem Valide Sultan, mother of Sultan Abdülmecid. After his mother's death, Abdülmecid completed the work in 1855. The mosque has an obvious geometric structure with its 25 x 25 meter base and rectangular shaped two-storey royalty section. It is one of the latest examples of the ampir (empire) style of the mid-19th century.