Besides temples and palaces, the square is famous for fountains. There are three of them, they are located on two sides of the square and in the center.
In the central part there is a fountain of the Four Rivers with sculptures of river gods of the Nile, the Danube, the Ganges and La Plata. In the north there is the Neptune Fountain with a majestic statue of the God of the seas. In the south part of the square there is the fountain of the Moors with the statue of the same name.
Three fountains are masterpieces of the sculptural arts. For example, the Fountain of the Four Rivers and the sculpture of the Moor are the works of Giovanni Lorenzo Bernini, the founder of Baroque sculpture.