San Callisto is a Roman Catholic titular church in Rome, Italy, built over the site of Pope Callixtus I's martyrdom.
Facade of San Callisto.
Orazio Torriani was an Italian architect and sculptor who worked in Rome. He was related to architect Nicola Torriani, but their exact relationship is unknown.
Torriani's façade of San Bartolomeo all'Isola
Staircase attributed to Torriani at the Church of SS Domenico and Sisto