1. Left: View of the Great Mosque, Kairouan, Tunisia, c. 836-75. Gardner p. 363, Fig. 13-7. Right: Plan of the Great Mosque, Kairouan, Tunisia, c. 836-75. Gardner p. 363, Fig. 13-8.

2. Left: Plan of Forum of Trajan, dedicated 112 A.D. Architect: Apollodorus of Damascus. Right: Plan of the Great Mosque, Kairouan, Tunisia, c. 836-75. Gardner p. 363, Fig. 13-8.

3. View of the Great Mosque, Corduba, Spain, 8-10th centuries.

5. Left: Prayer hall of the Great Mosque, Corduba, Spain, 8-10th centuries, Gardner p. 365 #13-11. Right: Maqsura of the Great Mosque, commissioned by the caliph al-Hakam II, Cordoba, Spain, 961-65. Gardner p. 365 #13-12.

7. Left: Dome over the mihrab of the Great Mosque, commissioned by the caliph al-Hakam II, Cordoba, Spain, 961-65. Gardner p. 366 #13-13.