The church dedicated to St Ciro and St John is the primary house of worship for the town of Vico Equense, the "mother church". Originally built in 1100s, but redone later in Baroque style following an earthquake in 1696. Its floorplan is a Latin cross with side chapels. The distinctive tiled dome is like others along the coast, a particularity of this area. The bell tower was added in 1873 and bears a small onion-dome. There are some lovely paintings and statues inside. The feast day rites held in January with a procession on January 31 to celebrate the saint day of St Ciro, and there is also a festa in August with four days of religious and civic festivities and observations.

Address in Vico Equense:

Via San Ciro, 13.