Although the facade of the basilica was designed by the architect Carlo Maderna, who distinguished himself during the construction of the facade of St. Peter's Basilica, the equally famous Carlo Rainaldi, Domenico Guidi and Ercole Ferrata participated in the work on the exterior of Sant'Andrea della Valle. The exterior of the Basilica of Sant'Andrea della Valle is recognized as the most valuable example of Baroque architecture in Rome, and the dome of the basilica is the third tallest dome in Rome. But the most vivid impressions were received from the interior of the temple...