The Conjunto Arqueologico de Madinat al Zahra is the archaeological site of what was once the archaeological city. The archaeological site is divided into three floors. The visit starts from the highest level and then goes down to the lower one. The residence of the caliph and of the most important court dignitaries are located at the top together with other administrative organs of government and rooms used for housing the guards. The middle terrace is occupied by gardens and vegetable gardens, while in the lower one there are the mosque and the city proper. The entrance is to the north, arranged "elbow". Then go down a series of ramps to the troops' quarters. It is believed that the entire building was at the disposal of the administrative staff and was therefore called the 'House of Ministers'. Going further down towards the last terraced level, you can see the mosque-cathedral and a group of rooms identified as the 'House of alms'. Finally, through a passage on which opens a series of rooms clad in white marble, between which there are the bathrooms, we reach the hall of 'Abd al-Rahmān III. In the highest part of the castle were the royal apartments.