The Roman antiquities, t. 4, Plate XX. Cutaway view of the Bridge of Four Heads. 

This is an etching by Giovanni Battista Piranesi, titled "Cutaway view of the Bridge of Four Heads." The print presents a complex interplay of lines, shapes and textures. Piranesi emphasizes the bridge's architectural elements with precise, dark lines, contrasting them against the stark white of the paper. The architectural forms appear monumental yet are juxtaposed with the softness of the water, which is conveyed by the delicate horizontal lines. Piranesi's approach to this print embodies structuralist principles, revealing an underlying system in architectural representation. The etching method allows him to create a world of light and shadow, emphasizing the geometrical forms and the structure of the bridge as a symbol of human achievement, but also of the passage of time and the inevitable decay of civilization. The print invites us to contemplate the bridge not only as a physical structure but also as a nexus of meaning, challenging us to decode its visual elements and their significance within a broader historical context.