11. The Middle School uses a team program called kivas . 12. For example, kivas found in Mesa Verde were generally keyhole-shaped. 13. They also possessed an elaborate religious life, evidenced by many ceremonial kivas . 14. The structure was built up to about 40 rooms and featured multiple kivas . 15. -- Public kivas and graveyards are off limits to non-Pueblo people. 16. Visitors are also strictly forbidden from entering the subterranean ceremonial chambers ( kivas ). 17. It has an estimated 500 rooms, 16 kivas and an immense earthen plaza. 18. Victoria Hall was designed by architect Kivas Tully. 19. However, some kivas were built above ground. 20. Their villages also had kivas , or round, semi-subterranean ceremonial structures.