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.
During the Middle Ages plague swept across Europe and the world killing millions of people, to seek protection from the diseases people turned to god. Making religion more important then education