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Medina Azahara is the largest archaeological site in Andalusia and Spain.
It houses the ruins of the ancient city of Madīnat al-Zahrā '("the brilliant city"), capital of the Arab Caliphate. It was built by Abd-ar-Rahman III, the first Umayyad caliph of Córdoba, in 936, as symbol of his power.
The city was destroyed in 1013, but it is still possible to admire the ruins of the caliphate residence, a vast medieval fortified palace in Moorish style.
It is located 8 km away from Cordoba, in the Sierra Morena, and it has recently been declared World Heritage Site by UNESCO.