Tags: Religious Building.
San Callisto (English: Saint Callistus Latin: S. Calixti) is a Roman Catholic titular church in Rome Italy built over the site of Saint Pope Callistus I and the location of his martyrdom. The original building dates form the time of Pope Gregory III who ordered the building of a church on the site. The church has been rebuilt twice since first in the twelfth century and again the current church in 1610.
