Medina Azahara ('the shining city') is the ruins of a vast, fortified Andalus palace-city built by Abd-ar-Rahman III (912–961), the first Umayyad Caliph of Córdoba. Located on the western outskirts of Córdoba, it was the de facto capital of al-Andalus as the heart of the administration and government was within its walls. In 2018, the site was listed as a UNESCO World Heritage site.
Built beginning in 936-940, the city included ceremonial reception halls, mosques, administrative and government offices, gardens, a mint, workshops, barracks, residences and baths. Water was supplied through aqueducts. The main reason for its construction was politico-ideological: the dignity of the Caliph required the establishment of a new city, a symbol of his power, imitating other Eastern Caliphates.
The complex was extended during the reign of Abd ar-Rahman III's son Al-Hakam II (r. 961-976), but after his death soon ceased to be the main residence of the Caliphs. In 1010 it was sacked in a civil war, and thereafter abandoned, with many elements re-used elsewhere. Its ruins were excavated starting from the 1910s. Only about 10 percent of the 112 hectares have been excavated and restored. A new museum on the edge of the site has been built low, with much of the space underground, to minimize disruption to the views of the landscape from the ruins, which are also beginning to be affected by modern housing.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.