The Tower of Saint Elia, also called the Lantern’s Tower, was built in 1282 by the Pisans on commission of Bondo Camulitano and Colo Frapano, castellans of the Castrum of Cagliari in that time.

It is located on the top of the Saint Elia’s promontory, near the church erected in honour of Elia, and made it possible to control all the sea space in front of it, ensuring visual connection with the other towers built along the coast of the gulf.

Manned by two guardians (later called "torrieri" during the subsequent Royal Administration of the Towers) it served as a lighthouse and guard tower.

A seventeenth-century manuscript describes the need for the timely identification and reporting of the Genoese canal which, at that time, frequently crossed those waters threateningly. It seems that the subject of the inspections of the time was, among other things, the quantity of wood collected and stored near the tower.

In this place, signalling fires were kept lit with which the Castrum of Cagliari - still without the Towers of the Eagle, of the Elephant and of the Lion - had to be alerted to the presence of the enemy ship. In addition to the defensive military function, the tower was designed to signal the right route to the boats to follow to reach the port. It was decommissioned in the late 18th century after the French landing attempt (1793/94).

Currently the tower is in a very bad state of conservation.

At the beginning of the fourteenth century, Pisa, in response to the threatening Aragon rise in the Mediterranean Sea, erected impressive towers in order to reinforce its stronghold in the south of Sardinia. Designed by the Sardinian architect Giovanni Capula, the Elephant Tower and the St. Pancras Tower were praised for their uniqueness, and, in 1535, Charles V, the powerful sovereign of the Holy Roman Empire, included them among the best military works of the entire Europe.
Finished in 1305, with its walls of thick limestone blocks, its narrow loopholes  and its  heavy gates, the St. Pancras Tower protected  the northern side of Castello; placed a hundred  metres above the sea level, built on four levels with a total height of more than thirty-six metres, it was also a perfect lookout station against attacks from both the sea and the hinterland.
In the sixteenth century the tower was used as a prison, where convicts lived in inhumane conditions.
The St.Pancras Tower is one of the most recognisable figures in Cagliari's landscape.
Restored to its original appearance, it is now open to visitors with access from the adjacent Palazzo delle Seziate.

Situated in the locality of Calamosca, in Cagliari, it was a sighting and light defence tower, senzilla, consisting of two overlapping volumes, one with a truncated cone and one with a cylinder. It communicated with almost all the towers of the Gulf of Cagliari, except those of the Poetto, Mezza Spiaggia, Carcangiolas and Foxi.

The masonry, made of calcareous material, has a base thickness of about 3.6 m. The cylindrical part, the result of subsequent restorations, is made of brick and stone and occupies the place of the original parade ground. The entrance, located about 5 m high and oriented towards the north-west, is now walled up; the tower is accessed by a new opening created at the level of the land. From the main room, with a domed vault, you reach the upper floor, also covered by a dome, through a staircase carved into the wall thickness.

Built in 1638, it is called the Tower (or Station) of the Signals because of an ingenious signalling device that allowed it to communicate with the Castle of Cagliari. The upper cylinder did not appear in the tower design, which seems to date back to a subsequent intervention in the mid-nineteenth century, in which a further expansion of the entire complex was carried out. This operation, in addition to changing the volumes, also made important changes to the internal distribution: on the first floor, in fact, four loopholes were made and habitable rooms were created.

Having become a barracks, the tower has always remained in use and is overall in excellent condition, except for a slight deterioration of the surfaces.

At the beginning of the fourteenth century, Pisa, in response to the threatening Aragon rise in the Mediterranean Sea, erected impressive towers in order to reinforce its stronghold in the south of Sardinia. Designed by the Sardinian architect Giovanni Capula, the Elephant Tower and the St. Pancras Tower were praised for their uniqueness, and, in 1535, Charles V, the powerful sovereign of the Holy Roman Empire, included them among the best military works of the entire Europe.

Completed in 1306-1307, with its walls of thick limestone blocks, its narrow loopholes and its  heavy gates, the Elephant Tower protected the south-western side of Castello; developed on four levels with a total height of more than thirty metres, it was also an excellent lookout station against any possible attack from the sea.

Even today it is one of the most striking accesses to Castello, while in the past it was also used as a powder magazine, armoury and prison.

In comparison to the St. Pancras Tower, the Elephant Tower is more well-refined and it is also decorated by the marble statue of an elephant, exposed on the facade, perhaps a symbol of the  Pisan maritime power.
Restored to its original appearance, nowadays the Elephant Tower is open to visitors, by the entrance at the right side of the church of St. Joseph.

Visitors are allowed to climb up to the fourth floor. The summit of the tower is not open to the public.

It is called “Torre della Quarta Regia” because, under the government of the Crown of Spain, and until 1954, a tax corresponding to a quarter of the catch was collected there, first by payment in kind and then by a cash payment.

Also known as Torre della Scafa, it was a watchtower manned by two men that had existed since at least 1598.

The structure was seriously damaged by a storm in November 1898 and it was later rebuilt with significant rearrangements and adjustments. Originally it was truncated cone-shaped with dimensions similar to those of other contemporary towers located in the Gulf of Cagliari, while the current shape is cylindrical with reinforced concrete floors to obtain two small rooms on which some windows for lighting have been inserted. A spiral staircase connects the two levels of the tower and allows access to the terrace. On the upper part of the facade there is a brick frieze. The height of the tower exceeds 8 meters for a diameter of 4.4 meters. The building, owned by the Autonomous Region of Sardinia, has undergone further restoration, which was completed at the end of 2017 by the Regional Coastal Conservation Agency.

"The Tower of Parsley” is located just outside the village of Sant'Elia. It can be reached by car by following the dirt road, or along Calamosca Avenue and then continue on foot in the direction of the tower.

The tower is part of the main works on the coastal fortifications in Sardinia, it guarded the beach below and the Lazzaretto area, to report any incursions towards the salt pans. It was also in visual contact with the nearby towers of Calamosca, Cala Fighera, Sant'Elia and the fortifications of Cagliari. Being about 34 m above sea level, it had an optical range of about 23 km.

The tower varied various denominations over the centuries, starting with the toponym "Capo Bernat" or also "Cala Bernat" or "San Bernardo" in Spanish times. In the eighteenth century it was called "di Santo Stefano detta del Lazzaretto", "de la Prajola" (of the beach), "Vecchia" in the twentieth century. The current name "del Prezzemolo" or "de su Perdusemini" or "Petro Semolo", already attested in the XVIII-XIX century, is actually borrowed from the tower of Cala Fighera, according to a 1740 document.

The construction of the tower at Capo Bernat dates back to 1578, when there was also the one of Calamosca, and they were both controlled by the city of Caller. But already in 1597, the Capo Bernat tower was restored. At the time, the garrison consisted of two towers. A further restoration was done in 1605, when a hanging balcony was placed in the entrance. In 1606 and 1615 the garrison was increased.

The “Torre del Prezzemolo” is a construction with a classic trunk shape but with reduced dimensions. Among the coastal towers it is the smaller one, with a foundation diameter of just 4.5 m and a residual height of 11 m. This is due to the site where it was built, a rocky outcrop with access from a single direction, close to the cove below.

The tower, intended only for the sighting function, was called "torrezilla".

In 1638, when the nearby Tower of Calamosca came back into operation, the Torre del Prezzemolo was discharged and no longer appears in the official documents of the 17th and 18th centuries. Although a Torre del Lazzaretto appears in the report of Cagnoli, the Commissioner of Artillery, Factories and Fortifications, in 1720. However, only in 1772 was it rearmed as a post for riflemen and as support for a light infantry company.

In 1793, on the occasion of the French attack, the engineer Lorenzo arranged a small battery of cannons behind the tower, thanks to which the landing on the beach below was avoided. After this episode, however, the tower was definitively abandoned.

It was restored only in December 1916 and in 1967 the rock on which it stands was propped up, to avoid its flaking.

The Poetto Tower stands on the Devil’s Saddle (Sella del Diavolo) promontory, 91 meters above sea level and it dominates the small port of Marina Piccola and the homonymous beach. It was built in 1597 and the structure, originally truncated-conical and vaulted with a dome, today appears divided into two sections. From it you can spot the coastal towers of the Gulf of Cagliari, including the one of Mezza Spiaggia and that of L’Isola dei Cavoli. The tower made possible to spot any enemy incursions and to protect the area behind the salt pans, a source of wealth for the city of Cagliari.

At the beginning of the 14th century, Pisa built imposing towers to strengthen its stronghold in South Sardinia. The Lion Tower was built in 1322 but it was never completed. Not very high and equipped with not particularly robust walls, due to the materials used in its construction, it soon lost its defensive function of the southern side of the Castle. Over time it became the headquarters of the general administrator of the kingdom, artillery warehouse and even astronomical and geodetic observatory. Severely damaged by fire in 1781, in 1840 it was completely incorporated into the adjacent Palazzo Boyl. The Lion Tower, currently not open to visitors, has not lost its function of entry to Castello district, overlooking the Portico delle Grazie, a charming barrel-vaulted passage, located between the streets De Candia and Lamarmora.

The only fortified entrance remained in Stampace district, that of ‘Portu Scalas’, is the oldest among the Pisan towers of Cagliari. It was built in 1293, a decade before the construction of the other towers in Castello district.

The tower, with a quadrangular map and about 20metres high, named also ‘dello Sperone’, has a loophole to testify the ancient defensive function.

It has become, over the centuries, part of San Michele Military Hospital; however, it still represent the entrance to the high part of Stampace.

The Place Cagliari, with its exclusive rooms and suites, opens its doors to those wishing to stay in an elegant and discreet atmosphere and to enjoy an atmosphere of refinement. Located in the old town of Cagliari, on the slopes of the ancient Castle,

The Place, is an old nineteenth-century building carefully restored to its former glory. The Place is a perfect destination for those staying for business or tourism. Its strategic location makes it prime location for day trips to the most beautiful beaches in the south of the island from Villasimius to Chia. In the nearby Piazza Matteotti are bus stops for the various seaside resorts and for the Poetto, the famous beach of Cagliari.