In the center of the square are two stunning fountains made from granite bathtubs removed from the Roman Baths of Caracalla. On top of each of them there is a stone sculpted iris, the Farnese’s symbol.
Close to the palace is located a small church dedicated to Saint Bridget of Sweden. The Saint lived in Rome during the second half of the 14th century. After Saint Bridget death her house was converted into a church. Today we can admire a beautiful Baroque façade that was added in the 17th century.