Final answer:
The most famous example of a dome on pendentives is the Pantheon in Rome.
Step-by-step explanation:
The most famous example of a dome on pendentives is the Pantheon in Rome. The Pantheon's dome was made with unreinforced concrete, making it the largest unreinforced concrete dome in the world.
The dome features an oculus, a round or elliptical opening at the top, which serves as the only source of light inside the building.