الْحَمْرَاء‎‎

The best part of Granada is the myriad of Spanish-Islamic art and the heart of it lies in the citadel and palace of the Alhambra (الْحَمْرَاء‎‎) ("The red castle) 

Intricate arabic calligraphy carvings with geometrical art is one of the best in the world and has to be witnessed at least once in a lifetime