Answer:
The Mihrab of the Great Mosque, Cordoba Spain, built during the reign of al-Hakam II. A mihrab is used to identify the wall, that faces Mecca in a mosque.
The mihrab of the Great Mosque is elegantly decorated with small pieces of glasses, reflecting the colors of dark blue, and brown. The use of yellow and gold color in the calligraphic along with plant motifs in decorating the arch.