People walk on their knees as they pray at the Holy Stairs in Rome March 10. The Renaissance frescoes surrounding the stairs as well as the adjacent Chapel of San Lorenzo are part of a major restoration. The project, which is expected to last another five years, involves removing layers of grime to bring back the original splendor of the artwork. (CNS photo/Paul Haring) (March 24, 2014) See VATICAN LETTER March 21, 2014.