Demonstration in large parts of the interior of the Pantheon 

This is a detailed architectural engraving by Giovanni Battista Piranesi, renowned for his meticulous depictions of Roman architecture. The etching, titled "Demonstration in great part of some parts of the interior of the Pantheon," showcases a cross-section of the Pantheon's interior. The plan demonstrates the structure of the building's column, entablature, and other features. Piranesi's work, like this one, is characterized by its technical precision and the artist’s fascination with classical Roman structures. The etching demonstrates the classical architectural details and provides a valuable insight into the design of the Pantheon, a prominent example of Roman architecture.