Demonstration in large parts of the exterior of the Pantheon 

This is an etching by Italian artist Giovanni Battista Piranesi, known for his detailed architectural drawings and depictions of ancient Roman ruins. The piece is a technical drawing of different elements of the Pantheon, showing its intricate design. Piranesi's meticulous attention to detail and use of precise measurements demonstrate his dedication to architectural accuracy and his fascination with classical architecture. The work exemplifies his influential contribution to the Neoclassical movement.