The faraglioni of Capri are three rocky peaks positioned to the south-east of the homonymous island, famous all over the world thanks to the evocative and historical overview offered by the gardens of Augustus. These emergencies are identified with three distinct names: the first (joined to the mainland) is the Faraglione di Terra; the second, separated from the first by the sea, is that of Mezzo; while the third, reaching out towards the sea, is the Faraglione di Fuori. The latter is very well known as it is the only habitat of the famous blue lizard. The faraglioni are: Faraglione di Terra (or Saetta), which is the only one still connected to the mainland, is the highest with its 109 meters. faraglione di Mezzo (or Stella), is the one in which there is the cavity in the center, a 60-meter long natural tunnel that crosses it in full, reaching a height of 81 meters. The name may perhaps be attributed to a cult of the Madonna della Libera, also known as Stella Maris, which was dedicated to a fourteenth-century chapel on Mount Castiglione. faraglione di Fuori (or Scopolo), that is a promontory on the sea, which reaches a height of 104 meters. The very famous blue lizard lives on this last cliff. In reality there is also a fourth stack, called the rock of the Monacone, which rises behind the three best known. The name can probably be attributed to the marine bovi, a species of seals that lived near the rock until 1904, when the last specimen was murdered near Palazzo a Mare. On the rock there are remains of Roman masonry, attributed without any criteria to the remains of the tomb of the architect of Augustus: Masgaba. Other theories, however, suggest a function of tanks for salting fish or even an enclosure for breeding rabbits. The stacks were also mentioned by Homer in the Odyssey, they would be the rocks launched by Polyphemus. The name derives from the Greek pharos, which means lighthouse. In fact, in ancient times on the mountains and on the rocks near the coasts, great fires were lit during the night hours, in order to signal to the navigators both the route and possible dangerous obstacles for navigation. Most probably the faraglioni had the same function. The Faraglioni had to be part of an extensive underground system modeled by external agents. The first to act were undoubtedly the karstic waters, which dug the rock up to 15 meters below the current level of the sea. This event was followed primarily by a breakup of the coast, which caused the destruction of the cavities; after that, the marine abrasion and the mechanical action of atmospheric phenomena favored the collapse of the vaults, after which the current forms were finally forged. The only part to remain unharmed by the various landslides was the natural tunnel of the Faraglione di Mezzo, which even expanded following the landslides.