Continuing toward via Sassari, a short distance from Martiri di via Fani square, is the parish church dedicated to St. John the Baptist. The building outside has an elegant nineteenth century bell tower and at its base there is a marble plaque with a list of the soldiers killed during the First World War. The bell tower, embellished by cornices, ends with a dome and was built in 1840 by workers from Piedmont .. Entering from the main door of the façade, inside there are three naves each with side chapels, a large dome at the intersection of the transepts and a raised presbytery area.
Since Siniscola, like the rest of the island, between 1713 and 1720 passed from Spanish to Austrian rule and finally to the Savoy rule. The recognition of the title of the parish as an alternative to the church of St. Anastasia most definitely led the religious and civil authorities of the time to ''demolish and rebuild the aforementioned church of St. John'' to create a larger building which would consider population growth and a ''greater care of souls ''. We do not know what is left of the former building that was certainly subjected to despoilment and likely re-use of stone materials. Even the Cathedral of Nuoro which has neoclassical features is subsequent to the Sinicolese church; in fact, no elements can be found in religious buildings in the Barony area that are comparable in size and architectural characteristics with the Church of St. John.
In the side walls, proceeding from the right aisle, you can see wooden polychrome statues mostly dating from the 17th and 18th century. In particular, in the right aisle, the statues of the Holy Trinity, St. Francis and St. Anne. In the right transept you can see the statues of St.Sebastian (dated 1678) and of Our Lady of the Angels (mid 17th century) and a statue of St. Stephen (early 18th century) from the church with the same name (demolished). In the left transept you can see a statue of St. Catherine of Alexandria, the Holy Cross in late Baroque style with the three Marys and Our Lady of Itria, the latter coming from an old church demolished after various events.
As in the past, the church of St. John is still the central physical location of the Christian spirituality of Siniscola, remarkable historical expression in its artistic and architectural pragmatism and point of convergence for many life experiences.
With its sacred beauty, it serves as a treasure chest for fine paintings.