Demonstration from the Lake of Fucino, two boards together, title listed with index 

Giovanni Battista Piranesi's "Demonstration from the Lake of Fucino" is a complex etching that documents the draining of the Lake Fucino in Italy. The artwork comprises multiple panels showcasing the lake, its surroundings, and the engineering process. The top section features a map of the lake, while the bottom showcases a scroll depicting the drainage system, alongside detailed notes and symbols. Piranesi, renowned for his architectural etchings, captures the grandeur of this feat of engineering with intricate detail and dramatic perspective. This artwork is a prime example of Piranesi's ability to merge technical accuracy with artistic flair, making it a valuable historical and artistic document.