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Castles and Towers

Alghero’s coastline and historic center are defined by a network of defensive towers and fortifications dating primarily from the 14th to the 18th centuries. These structures include massive city wall bastions like Torre di Sulis and isolated coastal lookouts such as Torre della Pegna. Built during the Aragonese and Spanish periods, they served to protect the city and surrounding bays from maritime incursions.

Ivan84jim / CC BY-SA 3.0

Torre della Pegna

Located on the cliffs of Capo Caccia at an elevation of 270 meters, this Catalan-Aragonese tower served as a strategic lookout over the Porto Conte marine area.

Gianni Careddu / CC BY-SA 4.0

Torre di Porto Conte

Also known as Torre del Port del Comte, this 16th-century coastal defense structure sits on the eastern shore of the Porto Conte bay.

Torre de Sant Joan / Torre di San Giovanni

A prominent circular tower within Alghero's city walls, historically used for defensive surveillance and later as a prison.

Torre San Giacomo

An octagonal tower on the city’s sea walls, built in the 16th century and characterized by its distinct architectural shape and limestone construction.

Gianni Careddu / CC BY-SA 3.0

Torre del Porticciolo

A circular lookout tower overlooking a secluded bay, built during the Spanish period to monitor the northwestern coastline.

Torre di San Erasmo

A defensive structure integrated into the northern section of Alghero’s historic fortifications.

Torre di Sulis

Named after the revolutionary Giuseppe Sulis, this massive tower—also known as Esperò Reial—is a key landmark of the city's waterfront bastions.

Fort

A 16th-century tower on the sea walls, historically used as a gunpowder magazine for the city's artillery.

Porta Terra

Formerly known as the Porta Reial, this was the primary land entrance to the fortified city and originally featured a drawbridge.

Torre del Bollo

A coastal defense tower located within the Porto Conte Regional Park area.

Torre del Lazzaretto

A large coastal tower overlooking Lazzaretto beach, originally part of the defensive network protecting the bay of Porto Conte.

Torre del Tramariglio

A Spanish-era lookout tower situated on a rocky promontory, providing views across the Gulf of Porto Conte.