floor was completely restored. In 1937-1938 under the guidance of archaeologist V.N. Leviatov, archaeological excavations were carried out in the palace and a large number of artifacts dating from the 12th–15th centuries were found. And the archaeological excavations conducted by Leviatov in 1945 on the territory of the palace ensemble, deep beneath the foundations of the surviving buildings, revealed the remains of a once densely populated residential quarter. Numerous fragments of ceramic products and coins date it to the 8th–9th centuries. For some time, the Azerbaijan People's Museum and the Museum of the History of Religion were located in the palace building. In 1960, the palace was turned into an architectural reserve, which in 1964 was transformed into the State Historical and Architectural Museum-Reserve "Complex of the Shirvanshahs Palace". In 1992, new restoration works began. The author of the restoration project of the palace complex was Niyazi Rzayev. Restoration began from the throne room. In 2000, at the 24th session of the UNESCO World Heritage Committee, the historical part of the city of Baku, Icheri Sheher, along with the palace, was declared a UNESCO World Heritage site from Azerbaijan. These were the first objects included in the list of UNESCO, located on the territory of Azerbaijan. In 2006, the next restoration of the palace was completed. In 2017, the Maiden Tower and the Palace of the Shirvanshahs were awarded with the Certificate of Excellence. Architecture The plan of the palace The palace Divan-khana Seyid Mausoleum Yahya Bakuvi The place of the destroyed Kei-Kubad mosque The Eastern portal The Palace Mosque The Shrine Place of bath Ovdan. The main building (the palace) The building of the palace did not arise at once. The building of the complex was started in 1411 by Shirvanshah Sheykh Ibrahim I. The two-storey building of the palace numbers about 50 dimensions and outlines of the constructions connected with three narrow winding staircases. The big lancet portal directly leads from the courtyard to the second floor, into a high octahedral lodging covered with a cupola. A small, octagonal vestibule behind it connects it with the rest of the lodgings in the palace. The earliest building (approximately the end of the fourteenth century) is the central part (octagonal hall of the second floor). The part adjoining the western facade was added a little later. The western, northern and a small part of the eastern facades form an incomplete