The fountain of the 99 spouts (also called the Rivera fountain) is a historical monument in L'Aquila. Located in the Rivera area, one of the oldest in the historic center, close to the Aterno river, near the church of San Vito alla Rivera, it constitutes almost the entire perimeter of the quadrangular square of the same name located adjacent to the city walls, and is made up of ninety-three stone masks and six single spouts, from most of which water flows: according to tradition, the spouts represent the ninety-nine castles in the surrounding area that, in the 13th century, participated in the foundation of L'Aquila. It constitutes almost the entire perimeter of the quadrangular square of the same name located adjacent to the city walls.