Baiae (; ) was an ancient Roman town situated on the northwest shore of the Gulf of Naples and now in the comune of Bacoli. It was a fashionable resort for centuries in antiquity, particularly towards the end of the Roman Republic, when it was reckoned as superior to Capri, Pompeii, and Herculaneum by wealthy Romans, who built villas here from 100 BC to AD 500. It was notorious for its hedonistic offerings and the attendant rumours of corruption and scandal. The lower part of the town later became submerged in the sea due to local volcanic, bradyseismic activity which raised or lowered the land, and recent underwater archaeology has revealed many of the fine buildings now protected in the submerged archaeological park. Many impressive buildings from the upper town can be seen in the Parco Archeologico delle Terme di Baia. Name Baiae was said to have been named after Baius (, Baîos), the helmsman of Odysseus's ship in Homer's Odyssey, who was supposedly buried nearby. The adjacent "" () was named after the town. It now forms the western part of the Gulf of Pozzuoli. The settlement was also mentioned in 178 BC under the name ("Cumaean Waters"). History Baiae was built on the Cumaean Peninsula in the Phlegraean Fields, an active volcanic area. It was perhaps originally developed as the port for Cumae. Baiae was particularly fashionable towards the end of the Roman Republic. Marius, Lucullus, and Pompey all frequented it. Julius Caesar had a villa there, and much of the town became imperial property under Augustus. Nero had a notable villa constructed in the middle of the 1st century and Hadrian died at his villa in AD 138. It was also a favourite spot of the emperor Septimius Severus. The resorts sometimes capitalised on their imperial associations: Suetonius mentions in his history that the cloak, brooch, and gold bulla given to the young Tiberius by Pompey's daughter Pompeia Magna were still on display around AD 120. According to Suetonius, in AD 39, Baiae was the location for a stunt by the eccentric emperor Caligula to answer the astrologer Thrasyllus's prediction that he had "no more chance of becoming emperor than of riding a horse across the Gulf of Baiae". Caligula ordered a 3-mile-long pontoon bridge to be built from impounded ships of the area, fastened together and weighted with sand, stretching from Baiae to the neighbouring port