The parish church of Simala is dedicated to Saint Nicholas, Bishop of Myra, and was recorded under that name for the first time in 1603.
Construction began in the middle of the 18th century on the site of an existing medieval church.
It was consecrated in the year 1777, as stated in the Latin inscription on the right pillar supporting the holy water stoup.
Inside the rectangular building, there is a single nave of almost the same length as the first two large side chapels. This feature makes it appear like a church with a Greek-cross plan.
The two large chapels house priceless wooden altars, known as the “Most Holy Crucifix" and the “Blessed Virgin of the Most Holy Rosary", created between the end of the eighteenth and the start of the nineteenth century.
The high altar was commissioned in 1775 by the rector Uras and was the outcome of a collaboration between the Spazzi and Franco families, marble workers from the province of Como and from Genoa who had a workshop in the Castello district of Cagliari. The same marble furnishings adorn the central chapels, named after San Raffaele and San Giuseppe.
A small marble staircase gives access to the raised presbytery bordered by a balustrade, also in marble. The sacristy lies on the right side of the presbytery and preserves the ancient stone floor that was originally present throughout the sacred building.
Four side chapels connected by rounded arches overlook the central nave with other wooden altars, one dedicated to Our Lady of Itria, the one opposite to Saint Anna.
