On the north side, the church of Santa Maria del Popolo is important for Raphael's Chigi Chapel, exquisite frescoes by Pincuricchio, and, above all, two profoundly disturbing early 17th-century paintings by Caravaggio, the Conversion of St. Paul and Crucifixion of St. Peter, in the Cerasi Chapel left of the choir.
Saint Maria del Popolo is a church on the north side.