Tomb of Caecilia Metella Self-researched
A cylindrical mausoleum at the three-mile marker of the Via Appia, built to honor Caecilia Metella, daughter of Quintus Caecilius Metellus Creticus (a consul in 69 BC) and wife of Marcus Licinius Crassus, son of the famous triumvir. The castle-like structure dominates the surrounding landscape and is one of the best-preserved monuments along the ancient road.