Demonstrations of some outer parts of the Pantheon 

This is an etching by Giovanni Battista Piranesi, titled "Demonstrations of some outer parts of the Pantheon." Piranesi, a master of the architectural etching, was known for his detailed and evocative depictions of ancient Roman architecture. This particular engraving, created between 1720 and 1778, showcases Piranesi’s meticulous style, revealing the intricate construction of the Pantheon through a cross-section view of the exterior. The piece features a series of meticulously rendered details and measurements, highlighting the layered and complex construction techniques of the ancient Roman era. Piranesi's etchings of Rome, including the Pantheon, popularized the study of Roman ruins, making them a cornerstone of 18th-century architectural discourse and influencing the Neoclassical movement.