Demonstration in large parts of the Portico of the Pantheon 

This detailed architectural drawing by Giovanni Battista Piranesi, a prominent 18th-century Italian artist, focuses on the portico of the Pantheon in Rome. The print uses precise measurements to showcase the intricate details of the building's structural elements. The image highlights the complexity of the architectural design, including the decorative elements like the sculpted acanthus leaves that grace the column capitals. Piranesi's meticulous drawings played a crucial role in disseminating knowledge and appreciation for classical architecture during the neoclassical era.