It is located in the rione Regola, at Piazza Capo di Ferro, 13, very close to the Palazzo Farnese. It has a garden facing towards the River Tiber.The palace accommodates a large art collection, the Galleria Spada. The collection was originally assembled by Cardinal Bernardino Spada in the 17th century, by his brother Virgilio Spada and added to by his grandnephew Cardinal Fabrizio Spada,HistoryIt
was originally built in 1540 for Cardinal Girolamo Capodiferro. Bartolomeo Baronino, of Casale Monferrato, was the architect, while Giulio Mazzoni and a team provided lavish stuccowork inside and out.The palazzo was purchased by Cardinal Spada in 1632. He commissioned the Baroque architect Francesco Borromini to modify it for him, and it was Borromini who created the masterpiece of forced perspective optical illusion in the arcaded courtyard, in which diminishing rows of columns and a rising floor create the visual illusion of a gallery 37 meters long (it is 8 meters) with a lifesize sculpture at the end of the vista, in daylight beyond: the sculpture is 60 cm high.
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