Among the blowing optical illusions scattered throughout Italy, there is one waiting to be discovered: the colonnade of the Galleria Spada in Rome. Famous as Borromini's accelerated perspective, this fascinating visual trick is hidden in a corner of the secret garden of Palazzo Spada, a historic building located in Piazza Capo di Ferro, a small square in the heart of the capital along the route from Piazza Farnese to Via Arenula.
Over the years, the optical illusion created by Francesco Borromini has captivated thousands of visitors, drawn to this masterpiece of visual engineering, which is one of the finest examples of Baroque perspective illusionism. The beauty of the portico is even more striking because it appears at the end of the visiting tour: it is the icing on the cake of an immersive adventure that arouses amazement and wonder thanks to a surprising three-dimensional effect.
