Answer:
The architectural design used in Mayan civilizations to study astronomy was observatories. Mayan astronomers used observatories to observe and study the movements of celestial bodies, such as the sun, moon, and planets.
The religious idea that the Maya shared with other Mesoamericans was not that all societies practiced religious tolerance, worshipped the same God, or believed in monotheism, but rather that each person shared a soul with a spirit animal. This belief in a personal spirit animal, known as a nahual, was common throughout Mesoamerican cultures and played a significant role in religious and cultural practices.