Pope Francis greets students outside Our Lady Queen of Angels School. (Photo © Catholic News Service/Eric Thayer, pool)

A student shows Pope Francis a lesson on the environment during his visit to Our Lady Queen of Angels School in East Harlem, Sept. 25 (Photo © Catholic News Service/Paul Haring)

Women listen as Pope Francis talks with immigrant families at Our Lady Queen of Angels School in East Harlem. (Photo © Catholic News Service/Paul Haring)