In 18th-century Naples, setting up the annual Christmas Nativity became a devotion with production values. The Neapolitan presepio has since found fans far from its native Italy. Pittsburgh's Carnegie Museum of Art has one of the most complete presepi in the world, with almost 100 human and angelic figures, including early pieces made by the Royal Porcelain Factory at Capodimonte. A terra cotta beggar group is attributed to master sculptor Giuseppe Sammartino, known for his monumental marble works.