Pantheon

Oculus: An oculus is a circular opening found in architecture, typically at the top of a dome or roof. It serves as both an aesthetic element and allows natural light to enter into interior spaces.

Coffers: Coffers are recessed square or rectangular panels that are often found on ceilings, domes, or vaults. They serve both decorative and structural purposes in architecture.

Rotunda: A rotunda is a round building or room, often with a domed ceiling like that of the Pantheon. It provides a sense of grandeur and spaciousness in architectural design.