Piscina Mirabilis

The Aqua Augusta, or Serino Aqueduct (Italian: Acquedotto romano del Serino), was one of the largest, most complex and costliest aqueduct systems in the Roman world; it supplied water to at least eight ancient cities in the Bay of Naples including Pompeii and Herculaneum. This aqueduct was unlike any other of its time, being a regional network rather than being focused on one urban centre.

Bacoli (Italian pronunciation: [ˈbaːkoli]; Latin: Bauli) is a comune (municipality) in the Metropolitan City of Naples in the Italian region Campania, located about 15 kilometres (9.3 mi) west of Naples.

Pennata is a wreck of the crater of Lake Miseno; it is part of the comune of Bacoli. It has been considered a small island since November 4, 1966 (the same day as the flood in Florence), when, following a violent sea storm, the strip of sand that connected it to the mainland disappeared. It is made up of yellow tuff and the very rich vegetation and the remains of brick structures show that it was a densely populated area.

Miseno is one of the frazioni of the municipality of Bacoli in the Italian Province of Naples. Known in ancient Roman times as Misenum, it is the site of a great Roman port.

Fortino Tenaglia Lighthouse (Italian: Faro di Fortino Tenaglia) is an active lighthouse located on a promontory on the west side of the Gulf of Pozzuoli in the municipality of Bacoli, Campania on the Tyrrhenian Sea.

Capo Miseno Lighthouse (Italian: Faro di Capo Miseno) is an active lighthouse located at the end of the promontory, with the same name, that marks the north-western limit of the Gulf of Naples as well as the Gulf of Pozzuoli toward the Tyrrhenian Sea in the province of Naples.

Cape Miseno (Italian: Capo Miseno, Latin: Misenum, Ancient Greek: Μισήνον) is the headland that marks the northwestern limit of the Gulf of Naples as well as the Bay of Pozzuoli in southern Italy. The town of Miseno is located on the north side of the cape. The cape is directly across from the island of Procida and is named for Misenus, a character in Virgil's Aeneid.

The Gulf of Pozzuoli (Italian: Golfo di Pozzuoli; Neapolitan: Gurfo 'e Pezzulo), formerly known as the Gulf of Puteoli, is a large bay or small gulf in the northwestern end of the Gulf of Naples in the Tyrrhenian Sea. It lies west of Naples and is named for its port of Pozzuoli. The Roman Sinus Baianus was located within it, near the resort town of Baiae. Along with the island of Ischia and gulfs of Naples and Gaeta, local waters are rich in productions enough to support various species of whales and dolphins, including fin and sperm whales.

Monte di Procida a small comune (municipality) in the Metropolitan City of Naples in the Italian region of Campania, located about 15 kilometres (9.3 mi) west of Naples, facing the island of Procida. Monte di Procida includes the small island of San Martino, which was occupied by the Germans during World War II. Its territory is included in the Campi Flegrei Regional Park.

Lucrinus Lacus or Lucrine Lake (Italian: Lago di Lucrino; Neapolitan: Laco 'e Lucrine) is a lake in Campania, southern Italy. It is less than one kilometre to the south of Lake Avernus and is separated from the Gulf of Pozzuoli by a narrow strip of land. Also known as the maricello ("little sea"), the size of present-day Lago Lucrino was significantly reduced by the rise of the volcanic cone of Monte Nuovo in 1538. The lake's modern dimensions are 1.5 kilometres (0.93 mi) long and about 5 metres (16 ft) deep.The recorded history of Lucrinus Lacus dates back to Sergius Orata, who is credited with creating the first oyster beds there. The lake was also a resort destination for residents of Baiae (cf. Martial i. 62). Its banks were covered with villas, of which the best known was Cicero's villa Cumanum on the east bank, which was the seat of his Academia. The remnants of this villa, and the nearby village of Tripergole, disappeared beneath ejecta from the eruption of Monte Nuovo in 1538. According to a history by Tacitus, Agrippina the Younger was murdered by the emperor Nero's assassins in her villa on the shores of Lucrinus Lacus in AD 59 after escaping an unsuccessful murder attempt while sailing on another craft nearby.The Via Herculanea and a railway traverse the strip of land between the lake and the Gulf of Pozzuoli. The ancient Via Herculanea road ran on a strip of land parallel and further to seaward from the present one and now submerged, which Strabo credited to Heracles with constructing. This strip was reinforced with a sea wall and then opened by Marcus Vipsanius Agrippa to make a harbour of Lucrinus Lacus. He then joined Lucrinis Lacus to Lago d'Averno by a canal, as recorded in Virgil's Georgics, providing a sheltered harbour known as Portus Julius for the Roman western fleet, invisible from the sea.Today Lucrino is a frazione of the comune of Pozzuoli.

Portus Julius (alternatively spelled in the Latin Iulius) was the first harbour specifically constructed to be a base for the Roman western naval fleet, the classis Misenensis. The port was located near Baiae and protected by the Misenum peninsula at the north-western end of the Gulf of Naples. Portus Julius was named in honour of Octavian's great-uncle and adoptive father, Julius Caesar and the Julian clan.

Lake Fusaro (Italian: Lago di Fusaro, Latin: Acherusia Palus, Ancient Greek: Ἀχερουσία λίμνη, romanized: Acherousia limne) is a lake situated in the province of Naples, Italy, in the territory of the community of Bacoli. It is about 0.5 miles (800 m) from Baia, and about 1 mile (1.6 km) from the acropolis of Cumae. It is separated from the sea by a narrow coastal strip. It is a very unusual ecosystem of great interest, characterized by a variety of vegetation specific to the region.