The Alhambra is a palace and fortress complex of the Moorish monarchs of Granada in southern Spain. The plateau where the Alhambra sits measures about 740 metres in length by 205 metres at its greatest width. It consists of bearing masonry and because of the colour it is called the red castle Alcazaba is the oldest part of Alhambra and has the most exquisite interiors. The entrance, Torre de la Armas and Torre de la Vela are some of the admirable pieces of art in Alcazaba. Completed towards the end of Muslim rule in Spain by Yusuf I (1333-1353) and Muhammed V, Sultan of Granada (1353-1391) and so it is the country's most famous Islamic architecture. The Alhambra was the Palace of the Nasrid dynasty.