Demonstration of some parts of the Opera brick, which builds the Pantheon 

This engraving by Italian artist Giovanni Battista Piranesi, known for his detailed depictions of Roman architecture, showcases the construction of the Pantheon. Piranesi meticulously illustrates the brickwork of the iconic dome, highlighting the specific techniques and materials used. The image includes close-ups of inscribed bricks and cross-sections revealing the intricate design. His work provides valuable insight into the technical artistry behind the building's construction. Piranesi's work was essential to the development of architectural history and continues to inspire awe at the engineering prowess of the ancient Romans. This engraving is a prime example of architectural illustration and Piranesi's dedication to documenting Roman architectural achievements.