Alghero Cathedral (Cattedrale di Santa Maria Immacolata di Alghero) is the seat of the Roman Catholic Diocese of Alghero-Bosa (initially bishopric of Alghero).
Construction started in 1570, and although it was opened in 1593, it was not until 1730 until it was finished and consecrated.
The original church was in the Catalan-Gothic style, as can be seen in the five chapels of the presbytery, which also include the base of the bell tower.
The nave and the two aisles are of late Renaissance style.
In the 20th century a Neo-Classical narthex was added to the façade, radically altering its appearance.

The church of St. Francis (1360, rebuilt in the late 16th century).
Original Catalan-Gothic parts can be seen over the high altar, the presbytery chapels and the San Sacramento Chapel.
The bell tower is from the first half of the 16th century.

The church of St. Michael.

The Madonna del Santo Rosario.
Alghero Cathedral (Cattedrale di Santa Maria Immacolata di Alghero) is the seat of the Roman Catholic Diocese of Alghero-Bosa (initially bishopric of Alghero). Construction started in 1570, and although it was opened in 1593, it was not until 1730 until it was finished and consecrated. The original church was in the Catalan-Gothic style, as can be seen in the five chapels of the presbytery, which also include the base of the bell tower. The nave and the two aisles are of late Renaissance style. In the 20th century a Neo-Classical narthex was added to the façade, radically altering its appearance.
The church of St. Francis (1360, rebuilt in the late 16th century). Original Catalan-Gothic parts can be seen over the high altar, the presbytery chapels and the San Sacramento Chapel. The bell tower is from the first half of the 16th century.
The church of St. Michael.
The Madonna del Santo Rosario.
Alghero