The church of St. Julian’s was built around the 12th century, has three naves and is made with columns and capitals of perusal from ancient Roman buildings.
The loggia was built in the early 1600s, again using perusal materials.
Inside we can see a processional crucifix and a statue of Our Lady of the Rosary, both from the second half of the 1500s, a 19th-century equestrian statue of St. Julian and, hanging in the left aisle, the silver insignia of the Confraternity from the second half of the 1700s.
On the walls in some places are pictorial depictions dating back to the 1300s depicting hunting scenes.
During the Antico Sposalizio Selargino the rite of the promise of the bride and groom takes place.
Adjacent to the church is Casa Collu, an old Campidanese house, where the ground floor houses a permanent exhibition on the Ancient Selargino Wedding, while the second floor houses the headquarters of the Confraternity of the Most Holy Virgin of the Rosary.
Noteworthy is the large painting made by Florentine painter Michele Medici in 1785 that depicts the Virgin of the Rosary and was previously located in the church of San Giuliano.
