The Quattro Canti are unique squares formed by the intersection of two main streets.
The square is defined by the overlooking façades of the buildings, which seem to embrace the space.
After the earthquake, a Quattro Canti square was also built in Catania.
The first to be built were those in Palermo: in 1567, the road from the Palazzo Reale to the sea, Via Toledo, was redesigned. In 1597, a new perpendicular street, Via Maqueda, was added, forming the Quattro Canti square.