built in 1130s. Baku Khans' Palace is a complex of several houses belonged to members of ruling family of Baku Khanate in 17th century. The palace complex was in ruins but has now been reconstructed as of 2018. Official Administration of State Historical-Architectural Reserve "Icheri Sheher has opened the complex as a palace-museum. The Palace of Happiness (Azerbaijani: Səadət Sarayı), currently also called Palace of Marriage Registrations and previously called Mukhtarov Palace, is a historic building in the center of Baku, Azerbaijan, built in Neo-Gothic style in the early 19th century. Shahbulag Castle Palace (Azerbaijani: Şahbulaq qalası "Spring of the Shah"), is an 18th-century fortress in near Aghdam. After the death of Turkic ruler Nadir Shah, the territory that is nowadays Azerbaijan split into several Caucasian khanates one of which was the Karabakh Khanate founded by Panah Ali Khan. The first capital of the khanate was the Bayat Castle built in 1748 Haji Gayib's Palace – is an ancient fortress construction near a coastal side of Icheri Sheher. It is located in Baku quarter of Icheri Sheher, opposite the Maiden Tower. History of the palace is dated back to the 15th century. Intake portal of the bathhouse is rectangular shaped The Palace of Shaki Khans (Azerbaijani: Şəki xanlarının sarayı) in Shaki, Azerbaijan was a summer residence of Shaki Khans. It was built in 1797 by Muhammed Hasan Khan. Along with its pool and plane trees, the summer residence is the only remaining structure from the larger palatial complex inside the Sheki Khans' Fortress, which once included a winter palace, residences for the Khan's family and servants' quarters. It features decorative tiles, fountains and several stained-glass windows. The exterior was decorated with dark blue, turquoise and ochre tiles in geometric patterns and the murals were coloured with tempera and were inspired by the works of Nizami Ganjavi. These are located in various regions and capital of Azerbaijan – the palace of government: Residence of Zagulba (510s) is the world's oldest presidential house and full-time residence of the President of Azerbaijan in Baku. Bika Khanum Saray (1390–1394) Full-time residence of the President of Azerbaijan in Baku. Bullur Palace (1740) residence of the President of Azerbaijan, and Chairmen of the Supreme Majlis of Nakhchivan Autonomous Republic in Sharur District. Asena Palace (1804) Full-time residence of the President of Azerbaijan in Baku. Göy Saray (Blue) (1810s) Rest residence of the President of Azerbaijan in