Final answer:
Islamic calligraphy is used as architectural decoration in mosques. It represents the divine word of Allah and holds cultural value in Islamic art.
Step-by-step explanation:
Islamic calligraphy is widely used as architectural decoration in mosques. Examples can be seen in the interior of the Dome of the Rock in Jerusalem, where calligraphic inscriptions of verses from the Quran are featured. Calligraphy is an appropriate form of decoration for Islamic religious structures because it represents the divine word of Allah and holds a high value in the Islamic culture.
Forms of writing as architectural decoration can also be found in other contexts, such as hanging lamps in mosques and calligraphic friezes or inscriptions above the mihrab, often quoting verses from the Quran.