A little known “unveiling” takes place after mass every day at Santa Maria in Vallicella, the Chiesa Nuova as it’s commonly called (even if it’s from early 17th century), on Corso Vittorio in downtown Rome.
Via an ingenious system of strings and pulleys however, the priest is able to slide Rubens’ Madonna e bambino benedicente out of the way and reveal the ancient, miraculous Madonna and Child icon below.