This is a historical mosque in Baku, Azerbaijan. The existing structure, built in the 1990s, is a recreation of the mosque with the same name built in the 13th century by Shirvanshah Farrukhzad II Ibn Ahsitan II, which was completely destroyed by the Bolsheviks in 1936. - The Bibi-Heybat Mosque includes the tomb of Ukeyma Khanum (a descendant of the Prophet Muhammad), and today is the spiritual center for the Muslims of the region and one of the major monuments of Islamic architecture in Azerbaijan. - It's locally known as "the mosque of Fatima" - The old mosque was situated in the southern part of the tomb, while there was a 20 meter high minaret in the west part of the mosque. Later a crypt and two niches were added to the mosque to the south of the minaret. On the niches there were inscriptions containing the name of Fatali Khan, whose tombstone marble slab is now in the Azerbaijan State Museum of History. - From 1305 to 1313, Mahmud Ibn Saad built the mosque's minarets. The top of the thread and stalactites, raised by a small pillar, surmounted by a semicircular dome of Rebrov. Railing minarets were patterned with stone grill. Graphic studies showed that the height of the minaret was about 22 m. - The rich interior of the complex has been decorated with ornaments. The inside of mosque included an oblong rectangular room with a lancet arch. Under the dome, there were chandelier-candlestick (shamdan), and a hook on which it hung was surrounded by stained glass. - On the north side of the minaret and the mosque immediately adjoining the tomb, there was an inscription which was discovered by Johannes Albrecht Bernhard Dorn. From the inscription it was clear that this mausoleum was built in 1619 and interred here by Sheikh Sharif Sheikh Bin Abid, who died the next day after work. - The modern restored mosque is a classic example of the Shirvan architectural school. The mosque has three domes, which have kept the traditional corrugated galvanised iron shape of the old mosque and two minarets. The domes are decorated with the green and turquoise mirrors, which are bordered with gilded inscriptions from Qur'an. Men's praying room is located on the south side of the complex, while women - on the north side. Between them is the mausoleum. - The builders used local varieties of limestone such as Gulbaht. On the inside the walls of marble carvings with calligraphic inscriptions such as muhaggah, Suls, Jami-Suls, Kufic, kufi-shatrandzh, musalsag, sofa and tugra. Also widely used such ornamental compositions as islimi, shukyufa, Bandy-Rumi, zendzhiri Selcuk (Seljuk chain), Shamsi, Jafari and Achma-yumma.